C100 Swap update and ?

[RedZMonte]

So i got the old harness 99% out. just need to pull the Alt. and remove the connections on the alternator and the '95 harness is out. Any Tips on getting the Alt. out. I have never done one myself, im sure i can figure it out but just wanted to make sure there wasnt anything tricky.

Couple questions. What sensors do i need to add? I know the EGR is one and 2nd O2, but im going to disable them using HPT. Do i need to add another knock sensor? if so where is it added.

Answered my 2nd question
these are the questions i had. everything else looks to be straight forward.

Thanks in advance
Shane

[RedZMonte]

the 2 wire plug is for the power steering pressure switch.

[pwmin]

what did you have larry do yesterday, shane?

[RedZMonte]

If i leave it unhooked it will not have power assist at low speeds and reverse. No biggie.

The swap is pretty straight forward. I did have to swap the connectors from the old harness to the new one for the transmission neutral safty switch i believe. other then that it plugs right in. Altho i does appear that the harness is shorter in some areas had to strech a couple wires . I have just the UIM to install again and also swap the knock sensor from the 1995 to the 1996 and hookup the alt and i think its ready to fire up.

I did notice a couple pins on the firewill harness are different, so i may need to swap them around.

S

[timg]

Did you do all of that with the engine in? Good luck!

Tim

[RedZMonte]

Did you do all of that with the engine in? Good luck!

Tim

Yeah i did the swap with the engine in. the harness went in easier then it came out i can tell you that for sure. but other then reaching the rear knock sensor everything went pretty smooth. it was about as easy is i antisipated. i did have to ratchet the motor forward and also yank the turbo out to get everything tho.

S

[RedZMonte]

Well the car started and ran last night. I need to get the rear Knock sensor replaced so i can read knock and also swap the DLC to the OBDII Style. and we are good to go.

[RedZMonte]

I also have a 3 wire connection on the engine harness between the TPS/IAC and the EGR, anyone know what it goes to?

The bulkhead connector was a snap. Pwmin and i added a 12v power w/ a 60amp maxi fuse to L1 and swapped E1 to A3 (pink wire) and she started. I found the OBDII data link conector for $2 P/N: 12110250 and will need to add a signal wire.

[timg]

I also have a 3 wire connection on the engine harness between the TPS/IAC and the EGR, anyone know what it goes to?

The bulkhead connector was a snap. Pwmin and i added a 12v power w/ a 60amp maxi fuse to L1 and swapped E1 to A3 (pink wire) and she started. I found the OBDII data link conector for $2 P/N: 12110250 and will need to add a signal wire.

MAP sensor.

I'm glad those swap directions work. That sounds like a really easy wiring harness mod!

Tim

[pwmin]

yeyah. now, i cant wait to do it to mine

now, i have a 96 block, so i have provisions for both knock sensors and the crank and cam position sensors are there, but i have 91 cams, so my cam position sensor wont be useable since the cams dont have the reluctor ring. do i need the 94+ cams or can i just remove the fault reporting forthe code(s)?

[timg]

I think you actually need the cam

Tim

[pwmin]

I think you actually need the cam

Tim

DRAT

[RedZMonte]

MAP sensor.

I'm glad those swap directions work. That sounds like a really easy wiring harness mod!

Tim

The map sensor is up by the TB on the '96? everything was easy except E1 to A3 not A3 to E1. E1 is a small wire (16 gauge i think) and A3 is a large wire (12 gauge or so)... I crimped it on anyhow and hope it will be fine. if not i will have to trace the wire and run a new wire.

I also need to know if 2 knock sensors are required, if so i need to find a place to put the 2nd (Front).

S

[RedZMonte]

Once i add J2 i can also swap to the new style DLC. It appears you need to add another ground to the new sytle DLC. P/N: for the data link is 12110250. allot of dealers don't stock it and you have to buy a pack of 5 to get them. Luckly they are ~2.50ea.

Shane

[timg]

Sorry about getting those wires mixed up. I fixed the spreadsheet now.

The MAP sensor is just behind the TB on the intake arm. If you find a stock one, you can probably remove the rubber grommet on it and run it through a vacuum hose to the intake.

Tim