Ok I rarely post on here but I lurk a lot. well now I am in over my head and I could use some help if you guys wouldnt mind. This will be a very detailed post of whats going on...figured the more deatails the better to help me...
Here is my car setup: 1998 Cobra I have the IMRC's deleted and I did the radio shack thing where the the IMRC controller is simulated. Also have an SCT mail order tune to help compensate for this. for the last 2 years it has worked flawless. Other than that car is 100% stock...22000 orgional miles...its a garage queen
The orgional Issue: Well its a long story but after I was putting the car back together from the IMRC delete I busted a bolt that holds the fuel rail down to the lower intake. I wont say how I jerry rigged it to work but I did...until this spring I decided to fix it right. this required the removal of the imrc plates to get a bolt extractor to work.
Got it and got it all set and repaired. reassembled and start the car here are the symptoms which are different with both tries I made:
On Saturdays attempt: car would start...but would not idle without some help from the gas pedal. had a very rough idle...engine shaking badly and knocking. the computer compensated and I took it to get some fresh fuel thought that might be the issue (.25 mile trip). Car bucked and ran rough no knocking all the way. on the way back had to keep it running with the pendal it was staling like crazy. Did all the checks I could think of. No smoke from the exhaust. emptied oil...no coolant in oil or Vise versa. 2 cans of starter fluid no vacume leaks...no codes that the SCT could find. Fine I think somethings not sealed right or I goofed something up in the very lower intake. Also returned the SCT progam back to stock
Sunday: rip it all appart again and inspect everything very closely. all gaskets look fine...no visual cracking of any kind. reassemble the car going very slow...making sure all gasket mating surfaces are extremly clean. I follow the torq procedure precisely in the Haynes Manual in the exact order. wait 20 mins and check bolts again...they are holding thier recommended Nm. Finish assembly. Start car...it wont start. cranks a couple times...finally starts with help of gas peda and runs very very rough and extremly rich and as soon as I let off gas. it dies. Wife noted it was blowing a greyish smoke. I watched on time while she ran it one time. its like a fuel cloud LOL...so rich.
then I ran all the usuals again....excpt for a vaccum leak check cause it wont even run.
No check engine
No Coolant in engine oil or vise versa
I know there is fuel pressue to the lines.
no CEL/CODES...
did notice one time the THEFT light was flasshing really fast but a battery reset seems to have fixed it....
So thats it I am throwing in the towel...I need some help. I am debating taking/towing it to the dealer...but this is my last ditch effort first.
Any thoughts? Bad computer maybe? PATS?
Here is my car setup: 1998 Cobra I have the IMRC's deleted and I did the radio shack thing where the the IMRC controller is simulated. Also have an SCT mail order tune to help compensate for this. for the last 2 years it has worked flawless. Other than that car is 100% stock...22000 orgional miles...its a garage queen
The orgional Issue: Well its a long story but after I was putting the car back together from the IMRC delete I busted a bolt that holds the fuel rail down to the lower intake. I wont say how I jerry rigged it to work but I did...until this spring I decided to fix it right. this required the removal of the imrc plates to get a bolt extractor to work.
Got it and got it all set and repaired. reassembled and start the car here are the symptoms which are different with both tries I made:
On Saturdays attempt: car would start...but would not idle without some help from the gas pedal. had a very rough idle...engine shaking badly and knocking. the computer compensated and I took it to get some fresh fuel thought that might be the issue (.25 mile trip). Car bucked and ran rough no knocking all the way. on the way back had to keep it running with the pendal it was staling like crazy. Did all the checks I could think of. No smoke from the exhaust. emptied oil...no coolant in oil or Vise versa. 2 cans of starter fluid no vacume leaks...no codes that the SCT could find. Fine I think somethings not sealed right or I goofed something up in the very lower intake. Also returned the SCT progam back to stock
Sunday: rip it all appart again and inspect everything very closely. all gaskets look fine...no visual cracking of any kind. reassemble the car going very slow...making sure all gasket mating surfaces are extremly clean. I follow the torq procedure precisely in the Haynes Manual in the exact order. wait 20 mins and check bolts again...they are holding thier recommended Nm. Finish assembly. Start car...it wont start. cranks a couple times...finally starts with help of gas peda and runs very very rough and extremly rich and as soon as I let off gas. it dies. Wife noted it was blowing a greyish smoke. I watched on time while she ran it one time. its like a fuel cloud LOL...so rich.
then I ran all the usuals again....excpt for a vaccum leak check cause it wont even run.
No check engine
No Coolant in engine oil or vise versa
I know there is fuel pressue to the lines.
no CEL/CODES...
did notice one time the THEFT light was flasshing really fast but a battery reset seems to have fixed it....
So thats it I am throwing in the towel...I need some help. I am debating taking/towing it to the dealer...but this is my last ditch effort first.
Any thoughts? Bad computer maybe? PATS?
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No kidding.... I have done that before and it runs with just 4 cylinders very much like you describe.
