My Engine Committed Suicide Yesterday
https://ls1tech.com/forums/attachmen...-sytem-001.jpg
3 new Racetronix Walbro 255 lph pumps.
3 new Ford Racing large filter socks
Custom tig welded hanger and hat
-10 feed bulkhead fitting
-8 return bulkhead fitting
Custom ported and hard anodized 3 into 1 shower head distribution block
Flexible SAE submersible efi hose
Each pump has it own dedicated 12 gauge feed and ground wires
Fuel gauge sending unit
Shift light is your basic Raptor, but I don't have a tach wire with continuity right now because of the repinning. My body harness is 98, but my engine harness is 99+. I repinned the interconnects where the two meet at the firewall. You go from 3 plugs on the interior harness to 2 plugs and consolodate the wiring. Going through some really old diagrams I drew and haven't looked at in years... The tach wire is pin 230 D / white and the ECT is 220 K / dark green.
While the person who was guiding me through this was telling me about the process I wrote, "2 Wire ECT plug for coolant sensor. Need a 3 wire plug." As well as. "Run an extra wire through the engine harness. 220 Pin K cut off pin, solder a length of wire to run to ECT (runs to cluster)" That person who I paid $100 for the information, diagrams, etc... stopped answering the phone or any emails I sent him about the situation. I only need to figure out those two wires and I'm done with it.
Questions:
- Does anyone know the difference between the 98 and 99+ coolant temp sensors? What I can guess by reading what I wrote is that the 98 has a 3 wire coolant temp sensor. Something like (power, ground, + signal) and the 99+ has a two wire sensor (ground + signal) and that my engine harness being 99+ only has a two wire plug. I therefore need to run an extra length from 220 K and connect it to the 2 pin ECT plug to make it like a 98.
- I have the white tach wire coming out of my cluster that runs over to the interconnect, but it currently isn't connected to anything. My thought is locating the tach signal wire from the PCM out and simply connecting them.
Again, these are simply educated guesses and not having a working engine makes testing if these will actually work difficult.
Questions (ANSWERS UNDERLINED):
- Does anyone know the difference between the 98 and 99+ coolant temp sensors? What I can guess by reading what I wrote is that the 98 has a 3 wire coolant temp sensor. Something like (power, ground, + signal) and the 99+ has a two wire sensor (ground + signal) and that my engine harness being 99+ only has a two wire plug. I therefore need to run an extra length from 220 K and connect it to the 2 pin ECT plug to make it like a 98.
Answer: https://ls1tech.com/forums/pcm-diagn...ke-values.html That simply told me the difference about how they operate and you can see the diagram for the 98 setup on the 2nd page. The diagram shows a dark green wire (220 Pin K) runs from the cluster to the sensor. That is what I need to setup.My 220 K ends at the firewall and I need to run some wire from the firewall to the sensor. The issue that I have now is that my 99 engine harness has the plug on it for the 99+ ECT sensor. You can see the differences in the harnesses.
98:
99+
My plan is to buy one of the 98 plugs, connect that to the 99+ engine harness, and run 200 K to the new plug.
Helpful link for 98 ECT sensor with images: http://www.am-autoparts.com/Pontiac/...15/664210.html
- I have the white tach wire coming out of my cluster that runs over to the interconnect, but it currently isn't connected to anything. My thought is locating the tach signal wire from the PCM out and simply connecting them.
ANSWER: As far as I know this is what I'm going to do.
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Today's images:
98 3 wire ECT sensor and Tach signal from PCM discovered.

99+ 2 Wire ECT plug on harness that will be getting changed.

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Items I still need help with:
- AVIC-D3 head unit wiring (Remember some sort of aftermarket plug and I have 1/2 of them in the garage. I need to dig tomorrow and find it.)
- Battery cutoff relay finished (Have a diagram)
- Shift light, gauges, and fuel pump functionality / power LEDs (Little to no clue)
- Fuel system wiring (Absolutely no clue)
Answered:
- Repinning harness for the coolant temperature gauge and tach
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Again, if anyone would like to donate time in the garage, a phone call, email, PM, or any sort of help it would be greatly appreciated.
For the fuel pump setup: post number 10
https://ls1tech.com/forums/fueling-i...mp-wiring.html
For the fuel pump setup: post number 10
https://ls1tech.com/forums/fueling-i...mp-wiring.html
The Best V8 Stories One Small Block at Time
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All parts collected for the car as well as some others are for sale and located here: https://ls1tech.com/forums/parts-cla...onics-etc.html
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All parts collected for the car as well as some others are for sale and located here: https://ls1tech.com/forums/parts-cla...onics-etc.html
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Put it the hell together already sit it in the driveway running dont part her out.
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Honestly what I'd need to put it together as cheaply as possible.
- 317 heads with rockers (Need 70+ CC chambered heads)
- Center bolt valve covers with bolts
- LS1 intake manifold, throttle body, bellows, and lid
- Exhaust manifolds, y pipe, exhaust
- Rear coilovers
- 4x 18" tires
- Help with the wiring (I'm color blind and as much as everyone rags me about finishing the car no one will help)
- Random wiring harness connectors
- Tune
EDIT:
- Stock injectors + fuel rail
Last edited by Beaflag VonRathburg; Jun 2, 2014 at 09:51 PM.
Honestly what I'd need to put it together as cheaply as possible.
- 317 heads with rockers (Need 70+ CC chambered heads)
- Center bolt valve covers with bolts
- LS1 intake manifold, throttle body, bellows, and lid
- Exhaust manifolds, y pipe, exhaust
- Rear coilovers
- 4x 18" tires
- Help with the wiring (I'm color blind and as much as everyone rags me about finishing the car no one will help)
- Random wiring harness connectors
- Tune
Color blind I could see making wiring a miserable job.
coil overs, tune, 18's, valve covers can't help with.
Intake, TB lid, ypipe and exhaust manifolds I do have just gotta get my car back from paint tore down and new motor put in heck I'd donate if it'll get forward momentum. Dont give up on her but I do understand projects that stall and languish due to lack of funds. Corner of our shop looks like a dumpster behind a abortion clinic from crap I've started on and stalled out or halfway done adult project ADHD what I call it.
I honestly really do appreciate the offer in regards to the stock parts. I may take you up on the offer for those parts. Getting this car running is the number one thing I want to achieve, but at this point I'm trying to be realistic. I need to raise about $9500 and most of that is only going to come from car parts. I'm going to try and avoid selling the car itself as if things work out I should be able to make back all of that money and then some to finally get the car running.
LOL, I can't even get to the laundry area in my garage because it is buried behind car parts, an engine, 8ft tall pile of boxes, and 36 steel shelving racks.
Aftermarket parts not on the car are for sale here:
https://ls1tech.com/forums/parts-cla...onics-etc.html
PS: Buying and selling parts... I'm in the black.



