digitalsolo

iTrader: (24)

Alrighty, I've been searching for 3-4 days trying to find the pinouts for these on a 1998 Harness (Camaro). I've got the C101-C105 completed and ready, but the engine harness -> dash connections don't seem to be documented anywhere.

I was just hoping someone around here might have the pinouts of those connections documented.

I am aware that I can trace the wires though the entire harness, but I'd VERY much like to avoid that if at all possible.

Thanks a lot,

Blake

LS1 Hybrid Magna

This will explain alot....but get ridd of the 98 ECM its abad "year only " GM
"mistake".



https://ls1tech.com/forums/showthrea...69#post2894269

my 99 and up harness pin out Atten. A4 car!

https://ls1tech.com/forums/showthrea...1&page=1&pp=20

some inside from mr.dude

https://ls1tech.com/forums/conversions-swaps/317372-unidentified-harness-connectors-question.html

this explains the connectors and pin outs

digitalsolo

iTrader: (24)

Yeah,I've looked through those previously (I've read like 75-80 threads on it).

For a few reasons I'm keeping the '98 harness/pcm for now. I want to rule out other wiring/mechanical issues before I redo everything, and I also have HP Tuners for a 98, and don't particularly want to buy it for another year PCM, as that's a touch pricey.

I do appreciate the advice, and I'll probably swap to a later model harness/PCM when I do my turbo setup later on. For now I just need to find the 220/230 pinouts for a 1998 F-Body harness... which is surprisingly difficult.

I'm sorry if I'm missing those pinouts somewhere in the posts you linked. I am blind from time to time.

LS1 Hybrid Magna

give me some time ,,,,,,,we got the 98 shop manual fbody in our library across the yard ......40min !ill take a speed ride

LS1 Hybrid Magna

I think just different from all other years--- !

Blue (230) Plug Automatic 98 fbody
A GRY clutch anticipate signal v6 only!
B Brown-wht service engine soon indicator feed
C not used
D wht tachometer signal to intrument cluster
E dk Blu Theft Deterrent Fuel Enable feed
F DK GRN/WHT A/C Request signal
G ppl brake pedal switch output-torque converter clutch v6 vin k auto trans
G brn fuse output ignition 3 type III fuse v6 vin k auto trans
H lt blu-blk (automatic) tcc switch power feed
J orn-blk (automatic) park-neutral feed from transmission range switch
J lt grn back up lamp feed v6 vin k man trans
K ppl output field service enable

98 LS1 PCM to Dash Harness
White (220) Plug
A red generator feed to intrument cluster
B tan oil pressure to intrument cluster
C brn-wht low oil level indicator
D not used
E not used
F blk-wht 451--no note in GM book must be ground!
G grn-wht vss
H wht skip shift indicator man trans
J yel-blk vehicle anti-theft system starter enable relay output-coil
K dk grn coolant temperature feed to intrument cluster

Funny why you guys in the US dont just order a shop manual set...???
we paid for the 3 book set 98 fbody manual 560Euro till the donkey van pulled on our club yard
The LS1 swap is going so dammmm slow cause every little thing needs to be
imported

digitalsolo

iTrader: (24)

Thanks! That is all I needed to finish my swap.

I didn't order the shop manual because I had 95% of what I needed to complete it, without having the manual, and I have the FULL diagrams, but they don't show the plug pinouts. Besides, I figured someone around here would have that info.

Thanks a lot sir, if you're ever in the states, I owe ya a beer.

Oscar Will

I have all the factory GM stuff including connector end diagrams and pin-outs. If I can help just holler!

LS1 Hybrid Magna

I miss my Highschool in Marion/Kansas!
Hot nights in Long Beach......
Racing on a 6 lane Ventura highway at night ........

And my GM Dealer in Cerritos S & J Chevrolet.....

digitalsolo any pics??thanx for the

digitalsolo

iTrader: (24)

Pics are here.

https://ls1tech.com/forums/conversions-swaps/309700-1986-rx7-ls1-4l60e-swap-big-pics.html

LS1 Hybrid Magna

From carb fuel **** to

TPI

to a LSX monster ......looking like a stock jap...nice sleeper

Saw the other thread but overlooked ya name back then!

Did you use the RX fuse box????
Or are you using the Fbody underhood relay/fuse box????

If someone reads this i would like to see a fool proof pic of the Fbody harness with the relay/fuse center ...???

Thats the last thing i havent really worked thru!

I will run the Fans of the CPU
I will fuse the Fuel pump off the harness
Can i skip the underhood fuse/relay stuff then???

digitalsolo

iTrader: (24)

Yes, you can skip the underhood stuff. My wiring is done using the LS1 harness as a standalone, running to a custom fusebox (actually, the interior fusebox from the Camaro, modified for my needs) in the glovebox. The OBD2 connector and the relays that will control the fans/fuel pump will also be in the glovebox (I'm just using regular old automotive relays for these). Using the harness pinouts you gave me, and the C100, C101, and C105 plugs from the underhood/front harness connection, all you need to do is supply power to the ignition switched and the one constant (for PCM) power, and one or two grounds. You COULD modify the factory front harness for that, but you'd probably have an easier time with a "standard" fuse bank.

I'll have some pictures and diagrams of my wiring setup next week sometime, no time this weekend unforunately.

edit: To clarify. I'm using the stock RX7 harness for all power/lights and juice to the ignition switch, and just tying off the factory ignition harness on the RX7 to give juice to the fuse block that I'm adding in the glovebox, which will then connect to the LS1 engine harness. I've done another RX7-LS1 this way a month ago, and it worked out quite well.

Hope that makes sense.

theantirotor

iTrader: (4)

do you have these in digital so they could be emailed?

digitalsolo

iTrader: (24)

Well, to bump this back up....

I'm missing one more wire... I can't find where the engine harness connects the OBDII data wire to the dash harness? Everything else is all wired up...

edit: My best guess so far is "Field Service Enable; C230 K ppl" That's the color of the wire on my OBDII connector... but I'm not sure why it doesn't say Serial Data or somesuch.

LS1 Hybrid Magna

,,,,,any pics??

I will look it up in the shop manual after lunch

Mario

digitalsolo

iTrader: (24)

Pics? Not sure what you mean...

I'm just trying to figure out which of the wires in the 220/230 plugs is the serial data line for the OBDII connector. From referencing the naming on the list that Magnus gave, and crossing the PCM pinout colors, it appears that it's the purple wire in plug "K" on the blue "230" plug, which is "field service enable" as that is also it's location on later 99+ harnesses as well. I'm just trying to verify before I wire it up and cook my HPTuners or something else bad.

All of your help is much appreciated!

ACW

I'm not sure how that 220/230 stuff relates to this, but it looks like there's supposed to be a Data Link Connector (DLC) that OBDII tools connect to, with these connections in it:

Ground Distribution:
Black-4
Black/White-5

Power Distribution / Fuse Block:
Orange-16

Powertrain Control Module:
Purple-2 (Serial Data Class II)
Tan-9 (Serial Data UART)

Is this what you're looking for?

digitalsolo

iTrader: (24)

The 220/230 stuff would be the plugs where those wires terminate. Better put, the wires run from the PCM (I know where those are) through the harness to plugs (which are, or at least should be) the 220/230 plugs to the dash harness. As I have the harness rewrapped and repaired, not to mention installed on the engine and in the car, I don't really want to unloom the whole thing to get the pinout to the connector. I'm fairly sure that the UART serial data isn't what I need, as the OBDII uses the class II signal, so that means it -should- be the purple wire.

Mostly, I just need to figure out if the "field service access" title in the book = "Serial data class II" in reality.

Making sense?