EXIT1RENEGADE

1994 Z28/m6

Just chagned water pump and opti, test started car with water pump off. car fired right up, and ran perfect. So i finished installing water pump, filled with fluid and and started it up, started with no problems, drove up and down street, about 3 miles total. pulled in drive way and shutt off to let cool down. went back out about 30 mins later to top off antifreeze, car started fine, i let run for about 5mins to warm back up, hopped in put it in reverse and made it about 15 feet before car started breaking up and then stalled. and would not start back up....

now when i crank it over and it will not start, but as soon as i stop cranking, (with the key in the "on" postion) it proceeds to cough thru the intake...

Now i have put a pressure guage on after the fuel pressure regulator, and when i have the key "on" you can hear the pump prime, and the guage reads 39 psi. and will bleed down to 0 after about 45 mins aproximatly.

i have also checked to see if i have spark, pulled cylinder 1 plug wire, and put a spare plug in and cranked the car over, and i have spark at cylinder 1," i havent checked any other plugs yet".

i have also changed the icm and coil to a new set and no change, i havent tested them yet. But will be doing so tomorrow..

sorry for the long post just wanted to get as much info from my perspective, to help anyone in assisting me. this is my first lt1, but not my first time tearing into things. just new with the lt1.
so any happy would be greatly appreaciated

thanks, Jared

bowtiedad_z28

iTrader: (4)

What brand of opti would be helpful as well. Did it throw any codes(SES) after it started acting up?

EXIT1RENEGADE

Part Number: NRD 481832H
Product Line: NAPA Reman. Distributors (i know probally shoudnt of got a reman)

when i drove it down the street when, it ran perfect, i had no check engine light, havent had it scanned yet though.

GreenBlood55

iTrader: (1)

I had a problem like this once. The opti harness was loose. I had driven like 10 miles after a opti swap and it was fine. then it did the same thing your describing. I apparently didnt click the tab on all the way and it backed off a little bit. Worth checking.

EXIT1RENEGADE

i know the connector on the passenger side is clipped in all the way, but havent checked the other end on the opti... walking out to the garage now...

EXIT1RENEGADE

all righty, wiggled the connector around on the opti with a long screw driver, cuz i cant get my big hands in there, and it fired right up, shut it down , waited about 10 mins and fired right back up. lol never even crossed my mind to check that end cuz they had it wrapped in shrink tubeing...
thanks for the help!!

GreenBlood55

iTrader: (1)

No problem. Should I go ahead and PM my paypal info? lmao.

EXIT1RENEGADE

lol how about a beer next time your cross the bridge into jersey lol

GreenBlood55

iTrader: (1)

Works for me! Hey, do you know anyone over there that does PCM tuning?

EXIT1RENEGADE

not off the top of my head, but if i find a place ill PM you.

GreenBlood55

iTrader: (1)

ok sounds good. I need my A4 pcm reflashed to a M6

EXIT1RENEGADE

Nucar on 13 should be able to do it.

RamAir95TA

iTrader: (2)

I just drove through Pennsville today. How bout that...hah.

02v8ta

iTrader: (8)

Me too, you got friends out here OP
Were you in your car Joe?

RamAir95TA

iTrader: (2)

Nah...I was in my daily driver. The car is away for a few more weeks while I get the rear fixed.

EXIT1RENEGADE

Sweet, well if you see a black z28, with a ls1 bumper ( rigged on..lol last owner did it haven't had a chance to get a factory one) flag me down lol, I always in woodstown or pennsville