LS1 Swap FAQs
#61
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Here are the ECM pinouts for the 2007 LS7 Z06.
Engine Control Module (ECM) C1 Pin
Wire Color
Circuit No.
Function
1-3
--
--
Not Used
4
PU/WH
1035
Starter Relay Coil Supply Voltage
5
--
--
Not Used
6
GY
48
CPP Switch Signal
7-8
--
--
Not Used
9
WH
17
Stop Lamp Switch Signal
10
PU/WH
1668
HO2S High Signal Bank 1 Sensor 2
11
TN/WH
1669
HO2S Low Signal Bank 1 Sensor 2
12
OG/BK
380
A/C Refrigerant Pressure Sensor Signal
13
BK/WH
2751
Low Reference
14-15
--
--
Not Used
16
D-BU
1936
Fuel Level Sensor Signal - Secondary
17
--
--
Not Used
18
YE
43
Accessory Voltage
19
PK
1439
Ignition 1 Voltage
20
RD/WH
2440
Battery Positive Voltage
21-22
--
--
Not Used
23
PU
1272
Low Reference
24
D-GN
890
Fuel Tank Pressure Sensor Signal
25-26
--
--
Not Used
27
TN
2501
ECM High Speed GMLAN Serial Data Bus -
28
TN/BK
2500
ECM High Speed GMLAN Serial Data Bus +
29
D-BU
1161
APP Sensor 1 Signal
30
BN
1271
Low Reference
31
TN
2759
Low Reference
32
L-BU
1162
APP Sensor 2 Signal
33
GY
2709
5-Volt Reference 1
34
GY
2700
5-Volt Reference 1
35
--
--
Not Used
36
TN
1274
5-Volt Reference 1
37
TN
472
IAT Sensor Signal
38
TN
2760
Low Reference
39-40
--
--
Not Used
41
YE
492
MAF Sensor Signal
42-46
--
--
Not Used
47
PK
439
Ignition 1 Voltage
48
WH
121
Engine Speed Signal
49
TN
1671
HO2S Low Signal Bank 2 Sensor 2
50
D-GN/WH
465
Fuel Pump Relay Control
51-55
--
--
Not Used
56
WH/BK
1164
5-Volt Reference 2
57
D-GN/WH
817
Vehicle Speed Signal
58
D-GN
335
Cooling Fan Relay Control
59
WH/BK
448
Ignition 1 Relay Control
60
--
--
Not Used
61
WH
1310
EVAP Canister Vent Solenoid Control
62
--
--
Not Used
63
D-GN/WH
459
A/C Compressor Clutch Relay Control
64
OG/WH
3223
HO2S Heater Low Control Bank 2 Sensor 2
65
BN
2391
HO2S Heater Low Control Bank 1 Sensor 2
66
GY
587
Skip/Shift Solenoid Control
67
YE/BK
625
Starter Enable Relay Control
68
BN/WH
419
MIL Control
69
PU
1670
HO2S High Signal Bank 2 Sensor 2
70
L-BU
1937
Fuel Level Sensor Signal - Right
71
YE
400
VSS High Signal
72
PU
401
VSS Low Signal
73
BK/WH
451
Ground
Engine Control Module (ECM) C2 Pin
Wire Color
Circuit No.
Function
1
--
--
Not Used
2
L-GN
1867
5-Volt Reference 2
3
L-BU/BK
1688
5-Volt Reference 2
4
--
--
Not Used
5
BN
582
TAC Motor Control - 2
6
YE
581
TAC Motor Control - 1
7
--
--
Not Used
8
D-GN/WH
428
EVAP Canister Purge Solenoid Valve Control
9-10
--
--
Not Used
11
L-GN
1652
Reverse Lockout Solenoid Control
12
GY/WH
3113
HO2S Heater Low Control Bank 1 Sensor 1
13
L-GN
3212
HO2S Heater Low Control Bank 2 Sensor 1
14-16
--
--
Not Used
17
D-BU/WH
878
Fuel Injector 8 Control
18
TN/WH
845
Fuel Injector 5 Control
19
YE/BK
846
Fuel Injector 6 Control
20
TN
1744
Fuel Injector 1 Control
21
YE
410
ECT Sensor Signal
22
TN
2761
Low Reference
23
TN/WH
585
Transmission Fluid Temperature Sensor Signal
24
OG/BK
586
Transmission Fluid Temperature Sensor Low Reference
25
--
--
Not Used
26
D-BU
496
KS 1 Signal
27
GY
1716
KS 1 Signal
28
--
--
Not Used
29
L-BU
1876
KS 2 Signal
30
GY
2303
KS 2 Signal
31
--
--
Not Used
32
GY
23
Generator Field Duty Cycle Signal
33
--
--
Not Used
34
BK
2755
Low Reference
35
TN/WH
1704
Low Reference
36
--
--
Not Used
37
L-GN/BK
1745
Fuel Injector 2 Control
38
PK/BK
1746
Fuel Injector 3 Control
39
L-BU/BK
844
Fuel Injector 4 Control
40
OG/BK
877
Fuel Injector 7 Control
41
GY
2705
5-Volt Reference 1
42
--
--
Not Used
43
GY
2704
5-Volt Reference 1
44
OG
631
5-Volt Reference 1
45-49
--
--
Not Used
50
TN/WH
331
Oil Pressure Sensor Signal
51-52
--
--
Not Used
53
OG/BK
469
Low Reference
54-55
--
--
Not Used
56
TN
1664
HO2S Low Signal Bank 1 Sensor 1
57
PU/WH
1665
HO2S High Signal Bank 1 Sensor 1
58
L-GN
432
MAP Sensor Signal
59
PU
1666
HO2S High Signal Bank 2 Sensor 1
60
TN
1667
HO2S Low Signal Bank 2 Sensor 1
61
OG
225
Generator Turn On Signal
62
--
--
Not Used
63
PU
486
TP Sensor 2 Signal
64
BN/WH
633
CMP Sensor Signal
65
D-GN
485
TP Sensor 1 Signal
66
PK/BK
632
Low Reference
67
--
--
Not Used
68
D-BU/WH
1869
CKP Sensor Signal
69
YE/BK
1868
Low Reference
70
PU
2121
IC 1 Control
71
PU/WH
2128
IC 8 Control
72
OG
2127
IC 7 Control
73
OG/WH
2122
IC 2 Control
74
L-BU/WH
2126
IC 6 Control
75
D-GN
2125
IC 5 Control
76
D-GN
2124
IC 4 Control
77
L-BU
2123
IC 3 Control
78
BN
2129
Low Reference
79
BN/WH
2130
Low Reference
80
--
--
Not Used
Engine Control Module (ECM) C1 Pin
Wire Color
Circuit No.
Function
1-3
--
--
Not Used
4
PU/WH
1035
Starter Relay Coil Supply Voltage
5
--
--
Not Used
6
GY
48
CPP Switch Signal
7-8
--
--
Not Used
9
WH
17
Stop Lamp Switch Signal
10
PU/WH
1668
HO2S High Signal Bank 1 Sensor 2
11
TN/WH
1669
HO2S Low Signal Bank 1 Sensor 2
12
OG/BK
380
A/C Refrigerant Pressure Sensor Signal
13
BK/WH
2751
Low Reference
14-15
--
--
Not Used
16
D-BU
1936
Fuel Level Sensor Signal - Secondary
17
--
--
Not Used
18
YE
43
Accessory Voltage
19
PK
1439
Ignition 1 Voltage
20
RD/WH
2440
Battery Positive Voltage
21-22
--
--
Not Used
23
PU
1272
Low Reference
24
D-GN
890
Fuel Tank Pressure Sensor Signal
25-26
--
--
Not Used
27
TN
2501
ECM High Speed GMLAN Serial Data Bus -
28
TN/BK
2500
ECM High Speed GMLAN Serial Data Bus +
29
D-BU
1161
APP Sensor 1 Signal
30
BN
1271
Low Reference
31
TN
2759
Low Reference
32
L-BU
1162
APP Sensor 2 Signal
33
GY
2709
5-Volt Reference 1
34
GY
2700
5-Volt Reference 1
35
--
--
Not Used
36
TN
1274
5-Volt Reference 1
37
TN
472
IAT Sensor Signal
38
TN
2760
Low Reference
39-40
--
--
Not Used
41
YE
492
MAF Sensor Signal
42-46
--
--
Not Used
47
PK
439
Ignition 1 Voltage
48
WH
121
Engine Speed Signal
49
TN
1671
HO2S Low Signal Bank 2 Sensor 2
50
D-GN/WH
465
Fuel Pump Relay Control
51-55
--
--
Not Used
56
WH/BK
1164
5-Volt Reference 2
57
D-GN/WH
817
Vehicle Speed Signal
58
D-GN
335
Cooling Fan Relay Control
59
WH/BK
448
Ignition 1 Relay Control
60
--
--
Not Used
61
WH
1310
EVAP Canister Vent Solenoid Control
62
--
--
Not Used
63
D-GN/WH
459
A/C Compressor Clutch Relay Control
64
OG/WH
3223
HO2S Heater Low Control Bank 2 Sensor 2
65
BN
2391
HO2S Heater Low Control Bank 1 Sensor 2
66
GY
587
Skip/Shift Solenoid Control
67
YE/BK
625
Starter Enable Relay Control
68
BN/WH
419
MIL Control
69
PU
1670
HO2S High Signal Bank 2 Sensor 2
70
L-BU
1937
Fuel Level Sensor Signal - Right
71
YE
400
VSS High Signal
72
PU
401
VSS Low Signal
73
BK/WH
451
Ground
Engine Control Module (ECM) C2 Pin
Wire Color
Circuit No.
Function
1
--
--
Not Used
2
L-GN
1867
5-Volt Reference 2
3
L-BU/BK
1688
5-Volt Reference 2
4
--
--
Not Used
5
BN
582
TAC Motor Control - 2
6
YE
581
TAC Motor Control - 1
7
--
--
Not Used
8
D-GN/WH
428
EVAP Canister Purge Solenoid Valve Control
9-10
--
--
Not Used
11
L-GN
1652
Reverse Lockout Solenoid Control
12
GY/WH
3113
HO2S Heater Low Control Bank 1 Sensor 1
13
L-GN
3212
HO2S Heater Low Control Bank 2 Sensor 1
14-16
--
--
Not Used
17
D-BU/WH
878
Fuel Injector 8 Control
18
TN/WH
845
Fuel Injector 5 Control
19
YE/BK
846
Fuel Injector 6 Control
20
TN
1744
Fuel Injector 1 Control
21
YE
410
ECT Sensor Signal
22
TN
2761
Low Reference
23
TN/WH
585
Transmission Fluid Temperature Sensor Signal
24
OG/BK
586
Transmission Fluid Temperature Sensor Low Reference
25
--
--
Not Used
26
D-BU
496
KS 1 Signal
27
GY
1716
KS 1 Signal
28
--
--
Not Used
29
L-BU
1876
KS 2 Signal
30
GY
2303
KS 2 Signal
31
--
--
Not Used
32
GY
23
Generator Field Duty Cycle Signal
33
--
--
Not Used
34
BK
2755
Low Reference
35
TN/WH
1704
Low Reference
36
--
--
Not Used
37
L-GN/BK
1745
Fuel Injector 2 Control
38
PK/BK
1746
Fuel Injector 3 Control
39
L-BU/BK
844
Fuel Injector 4 Control
40
OG/BK
877
Fuel Injector 7 Control
41
GY
2705
5-Volt Reference 1
42
--
--
Not Used
43
GY
2704
5-Volt Reference 1
44
OG
631
5-Volt Reference 1
45-49
--
--
Not Used
50
TN/WH
331
Oil Pressure Sensor Signal
51-52
--
--
Not Used
53
OG/BK
469
Low Reference
54-55
--
--
Not Used
56
TN
1664
HO2S Low Signal Bank 1 Sensor 1
57
PU/WH
1665
HO2S High Signal Bank 1 Sensor 1
58
L-GN
432
MAP Sensor Signal
59
PU
1666
HO2S High Signal Bank 2 Sensor 1
60
TN
1667
HO2S Low Signal Bank 2 Sensor 1
61
OG
225
Generator Turn On Signal
62
--
--
Not Used
63
PU
486
TP Sensor 2 Signal
64
BN/WH
633
CMP Sensor Signal
65
D-GN
485
TP Sensor 1 Signal
66
PK/BK
632
Low Reference
67
--
--
Not Used
68
D-BU/WH
1869
CKP Sensor Signal
69
YE/BK
1868
Low Reference
70
PU
2121
IC 1 Control
71
PU/WH
2128
IC 8 Control
72
OG
2127
IC 7 Control
73
OG/WH
2122
IC 2 Control
74
L-BU/WH
2126
IC 6 Control
75
D-GN
2125
IC 5 Control
76
D-GN
2124
IC 4 Control
77
L-BU
2123
IC 3 Control
78
BN
2129
Low Reference
79
BN/WH
2130
Low Reference
80
--
--
Not Used
#64
Launching!
iTrader: (2)
Originally Posted by GTOpowered240sx
In regards to the steam line, I was about to do the water pump mod when I found the water pump on the GTO LS1 is slightly different and doesn't have that convenient spot as the others.
It got me to thinking so I decided to see how this line was ran on my GMC HD 6.0L. Guess what? It simply goes from the cross-over line to a nipple on the bottom of the throttle body. I look at my GTO TB, and it has the same nipple, just capped off. The factory GTO line even had a splice in the line that looked as though its initial purpose was to just run it there. I just pulled out the splice and connected it to the TB.
Anyone see any reason why this shouldn't work?
It got me to thinking so I decided to see how this line was ran on my GMC HD 6.0L. Guess what? It simply goes from the cross-over line to a nipple on the bottom of the throttle body. I look at my GTO TB, and it has the same nipple, just capped off. The factory GTO line even had a splice in the line that looked as though its initial purpose was to just run it there. I just pulled out the splice and connected it to the TB.
Anyone see any reason why this shouldn't work?
#65
Originally Posted by GTOpowered240sx
In regards to the steam line, I was about to do the water pump mod when I found the water pump on the GTO LS1 is slightly different and doesn't have that convenient spot as the others.
It got me to thinking so I decided to see how this line was ran on my GMC HD 6.0L. Guess what? It simply goes from the cross-over line to a nipple on the bottom of the throttle body. I look at my GTO TB, and it has the same nipple, just capped off. The factory GTO line even had a splice in the line that looked as though its initial purpose was to just run it there. I just pulled out the splice and connected it to the TB.
Anyone see any reason why this shouldn't work?
It got me to thinking so I decided to see how this line was ran on my GMC HD 6.0L. Guess what? It simply goes from the cross-over line to a nipple on the bottom of the throttle body. I look at my GTO TB, and it has the same nipple, just capped off. The factory GTO line even had a splice in the line that looked as though its initial purpose was to just run it there. I just pulled out the splice and connected it to the TB.
Anyone see any reason why this shouldn't work?
#66
Launching!
iTrader: (2)
Steam Line
Another option for the steam line is to just get the T coupler found on the 1992 Corvette upper radiator hose. They run about $13 from GM and you simply cut your upper hose, slide it in, then route the steam line to the nipple on the coupler. My guess is GM did this vs. a whole new radiator design when they started the LT1 in the C4 - which the steam line continued in the LS series motors but those have nipples in the radiator.
I'm picking one up tomorrow and will edit this post with the GM part number.
PART NUMBER: 14104460
I'm picking one up tomorrow and will edit this post with the GM part number.
PART NUMBER: 14104460
Last edited by 69MyWay; 06-13-2007 at 09:13 AM.
#67
TECH Apprentice
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Updated and Corrected LS1 Retrofit Wiring
I have corrected and updated the pdf file to show the correct A/C operation for the LS1 wiring harness. This should work for all 1999-2002 LS1 engines. Here is the pdf file attached so you can download it. All you need is Adobe 7.0 or better. hope this helps alot of people.
Last edited by Jhankinson; 06-12-2007 at 01:33 PM.
#68
Staging Lane
Join Date: Jan 2005
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Originally Posted by Hersker Hans
could someone update the first post with 2003 2004 ++ pin out assignments? would be great, im gonna start on installing a 2004 gto engine, and the plugg assignments.
X2
or is the 2003 the same as the 2002 harness? I just picked up an 2003 LQ4
#69
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Originally Posted by SatisTraction
some fuel system info
LS1 Swap Fuel System
There are several ways to go about doing this. The most common seems to be using and external pump connected from a sumped fuel tank to a corvette filter/regulator. This allows a return back to the tank and a single fuel supply line ran to the front of the car.
1999+ Corvette Filter/Regulator
http://www.hotrodlane.cc/PRODUCTS/ls...ilterstock.jpg
buy it from advanced auto for $50
Scooter70
https://ls1tech.com/forums/member.php?u=16459
http://matt.undiagnosed.org/ls1/fuel.html
for stock like push on connectors look here
http://store.summitracing.com/defaul...h.asp&x=42&y=8
http://www.russellperformance.com/au...uel-3-27.shtml
BY: ls1_chevelle
On the truck intakes(might be specific years) there is both the feed and return line going to the fuel rail(duh). Theres no need for a fuel pressure regulator because its already built in to the fuel rail itself.
This leaves you with many fueling choices. You can...
A) Run an external pump to feed the feed line and a return line that goes to the tank.
B) Run an Intank pump conversion such as the Tanks Inc. setup. http://www.tanksinc.com/index.cfm/p...=prod/prd84.htm and here it is being installed http://www.thedetailzone.com/Tanks%...p%20Install.htm
C) Run a newer generation plastic fuel tank. the 96 Impala SS fuel tank is supposed to be a bolt in to A-Body cars (69-72) and with slights mods can go into a Camaro. Only problem is that the tank is quite deep.
D) Go with an aftermarket tank such as Rock Valley http://www.rockvalleyantiqueautoparts.com/ndex.htm
LS1 Swap Fuel System
There are several ways to go about doing this. The most common seems to be using and external pump connected from a sumped fuel tank to a corvette filter/regulator. This allows a return back to the tank and a single fuel supply line ran to the front of the car.
1999+ Corvette Filter/Regulator
http://www.hotrodlane.cc/PRODUCTS/ls...ilterstock.jpg
buy it from advanced auto for $50
Scooter70
https://ls1tech.com/forums/member.php?u=16459
http://matt.undiagnosed.org/ls1/fuel.html
for stock like push on connectors look here
http://store.summitracing.com/defaul...h.asp&x=42&y=8
http://www.russellperformance.com/au...uel-3-27.shtml
BY: ls1_chevelle
On the truck intakes(might be specific years) there is both the feed and return line going to the fuel rail(duh). Theres no need for a fuel pressure regulator because its already built in to the fuel rail itself.
This leaves you with many fueling choices. You can...
A) Run an external pump to feed the feed line and a return line that goes to the tank.
B) Run an Intank pump conversion such as the Tanks Inc. setup. http://www.tanksinc.com/index.cfm/p...=prod/prd84.htm and here it is being installed http://www.thedetailzone.com/Tanks%...p%20Install.htm
C) Run a newer generation plastic fuel tank. the 96 Impala SS fuel tank is supposed to be a bolt in to A-Body cars (69-72) and with slights mods can go into a Camaro. Only problem is that the tank is quite deep.
D) Go with an aftermarket tank such as Rock Valley http://www.rockvalleyantiqueautoparts.com/ndex.htm
Corvette fuel filter commonly used in OBS conversions if you are doing a returnless type fuel rail install....
Wix 33737 www.planetautoparts.com $37.93
GM 10299146
Purolator F55493
GF1822
Hastings GF336
PGF336
GKI GF1822
Connectors required to hook to the filter...
Dorman PNs
3/8" female connector DOR-800-121 www.midwayautosupply.com $7.36
5/16" female connector DOR-800-120 www.midwayautosupply.com $7.36
3/8" x 12" double ended male connector DOR-800-155 www.midwayautosupply.com $9.57
You'll need fuel injection quality fuel hose to connect the Dorman quick connects to the old steel fuel lines. I cut both the pressure and return lines about 2" before the factory filter location. Use the rubber fuel injection hose to connect to the new filter. Use 2 hose clamps on each end of the new connections. It's best if you use the hose clamps that have a smooth stainless steel liner to protect the hose. You'll need about 6 feet of hose to connect from the filter to the fuel rail if you have an extended cab. The outlet side of the filter will require the male fitting be cut to about 4"-6" long from one end and then push it into the fuel hose and double-clamp it.
#73
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Originally Posted by 12SEC SS
Here is wiring for a '03 Silverado 3500HD 6.0L truck.
Thanks for posting up more diags... 03 is what I'm working with... I'm running but still sorting through some gauge, cruise control and other wiring
#77
TECH Enthusiast
iTrader: (37)
Good source for oddball and other small needed parts
I was reconfiguring my BMW L33 swap brake lines, and needed some M10 bubble flare unions to extend a few lines. Every place I found one online was "Jobber/Distributor Only" , one even went so far as to say "No consumer sales" (hopefully, this will come true & they will go out of business because anyone buying from them is a consumer) and they did not list where I could buy their most precious of parts. BTW, I live in a one parts house town & the selection is really limited. I also like to do things myself, because the counter guy can appreciate the car but does not understand that my Mazda has a Silverado motor, a Corvette alternator, a Camaro driveshaft, a Taurus fan...
Unfortunately the (***) "wholesale only" is an all too common occurrence of late. I classify car/product websites as either "advertisements" or places where you can actually buy/do something. BTW, I do a lot here, so LS1Tech is a "do" website .
Anyhow, I found this place. The link is to the main catalog page, which has a link to the index pages. Of interest to me was the section with pages 70-71. You will find all sorts of brake fittings, and other oddball/small stuff such as o-rings, trim clips, terminals, factory pigtail connectors, wire loom, vacuum caps, etc. that are usually needed in the process of a swap. Most have to be purchased in a kit of several items, but the prices were not too bad when I checked. You also need to do your homework before shopping here to know what you need, as there is no application guide in the PDF files.
You can also look at the actual PDF catalog files:
Electrical and hardware components part 1 or part 2 for more of this type of stuff.
This is only half the battle, since this place is an "advertisement" website:
KTI sells strictly through distributors located across the U.S., Canada and Puerto Rico . Please contact us to locate your nearest distributor.
It is always aggravating to find the 10mm fitting you need at vendor A, who does not carry the 12mm fitting you need for the other end of the part you are adapting, so you end up buying from two places and paying double shipping. With the selection this place has, you should be able to find all the small stuff and pick it up on one order.
I found one of my favorite parts houses (Rock Auto) carries most of their stuff. You input the part # w/o the KTI and it should come up, i.e. the bubble flare union is PN KTI 04028. Input 04028 in the RA search window and it comes up & you can add it to your online cart and the world is again a wonderful place .
I hope this does not qualify as a non-sponsor link since the stuff they sell is not something you can find at one of our sponsors (at least if you can, they have hidden it really well).
Unfortunately the (***) "wholesale only" is an all too common occurrence of late. I classify car/product websites as either "advertisements" or places where you can actually buy/do something. BTW, I do a lot here, so LS1Tech is a "do" website .
Anyhow, I found this place. The link is to the main catalog page, which has a link to the index pages. Of interest to me was the section with pages 70-71. You will find all sorts of brake fittings, and other oddball/small stuff such as o-rings, trim clips, terminals, factory pigtail connectors, wire loom, vacuum caps, etc. that are usually needed in the process of a swap. Most have to be purchased in a kit of several items, but the prices were not too bad when I checked. You also need to do your homework before shopping here to know what you need, as there is no application guide in the PDF files.
You can also look at the actual PDF catalog files:
Electrical and hardware components part 1 or part 2 for more of this type of stuff.
This is only half the battle, since this place is an "advertisement" website:
KTI sells strictly through distributors located across the U.S., Canada and Puerto Rico . Please contact us to locate your nearest distributor.
It is always aggravating to find the 10mm fitting you need at vendor A, who does not carry the 12mm fitting you need for the other end of the part you are adapting, so you end up buying from two places and paying double shipping. With the selection this place has, you should be able to find all the small stuff and pick it up on one order.
I found one of my favorite parts houses (Rock Auto) carries most of their stuff. You input the part # w/o the KTI and it should come up, i.e. the bubble flare union is PN KTI 04028. Input 04028 in the RA search window and it comes up & you can add it to your online cart and the world is again a wonderful place .
I hope this does not qualify as a non-sponsor link since the stuff they sell is not something you can find at one of our sponsors (at least if you can, they have hidden it really well).
#78
On The Tree
Join Date: Jul 2004
Location: Stockholm, Sweden
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I just found that Autometer has adapter fittings for LS1 Metric to 1/8" NPT. Usefull for oilpressure and temp sender.
I bought one M16x1.5 > 1/8"NPT for oilpressure warning light sender.
They also have the sender, I got one that turns on the light below 18psi.
They also have the metric M12 adaptor that can be used for tempsender in the passenger side cylinder head.
Find out more here:
http://www.autometer.com/cat_accesso...st.aspx?pid=11
Jan
I bought one M16x1.5 > 1/8"NPT for oilpressure warning light sender.
They also have the sender, I got one that turns on the light below 18psi.
They also have the metric M12 adaptor that can be used for tempsender in the passenger side cylinder head.
Find out more here:
http://www.autometer.com/cat_accesso...st.aspx?pid=11
Jan