No spark!!! - GN and T-Type Performance Enthusiasts (GNTTYPE) Forums

turbogn86 · #1 12-20-2004, 12:20 PM

looking for knowledgable buick specialist near the central geargia area...

we have replaced, crank sensor, cam sensor, control module, coil pack, and relay... freshly build motor... need help...

turbofish38 · #2 12-21-2004, 05:16 PM

What type of problem are you having? It might be easier to fix if we had some specifics?

BTW I'm down in Orlando.

turbogn86 · #3 12-22-2004, 01:54 AM

no spark...the car has injector pulse, fuses are good, ing/coil are new an fine, fuel pump is fine, grounds are good, cam sensor has been toyed with an adjusted to postons specs an still no fire... relays are good too... we ordered a new plug for the crank sensor which has been replaced so hopfully that will help us out but im still looking for some buick shops, an may need one for this car if we failt o get it operational... it has been down for like 6 months for a rebuild that was supposed to take a month... its a project me an my neighbor (GM certified mechanic) have taken on... an well we are cluless...

turboluigi · #4 12-22-2004, 02:07 PM

ECM battery cable on ?

-Luigi

gofstbuick · #5 12-22-2004, 02:48 PM

If your neighbor is a certified GM tech, then he/she should be able to review the no start trouble tree and determine the problem. The trouble tree is separated into two parts, no start fuel problem and no start spark problem.

turbofish38 · #6 12-22-2004, 05:14 PM

I had a problem like that once. It was one of the ECM power feed pins. The orange wire in the very corner(Sorry I cant remember the pin #) of the ECM was corroded. If I had to guess I would say ECM related too.

turbogn86 · #7 12-22-2004, 08:00 PM

he has tried everything he knows an still nothing.. he is doing one last thing but said to ask if anyone has any recomendations on what might be the prob... i have not checked the ecm wire i will when i go qork on the car this week.

dmoberg · #8 12-23-2004, 02:04 PM

Had something somewhat similiar once..... Turned out to be the oil pressure switch connector. Did a rebuild and put everything back together and it wouldn't fire up. I'm not completely sure of the specifics but if I remember correctly the switch disables the fuel pump output if there's no oil pressure, a safety feature in the event of an accident. Don't know if it inhibits spark of not. I do know we spent many many hours trying to figure out why the beast wouldn't go and it turned out to be a broken connection in the switch socket. Replaced the socket and it's been fine ever since. May be worth a try to back-probe the connector and check it, with all the moving around of parts and wiring harness stuff you may have "caused" the same problem I did. Just my 2 cents....

turbogn86 · #9 12-23-2004, 02:19 PM

we had that issue also, tried to put in kirbans oil pressure sensor an they dont have the stuff to wire it up for that so i have the stock one on... but yes that is a pain if u dont know what ur sensors control.

Keller · #10 12-26-2004, 12:14 AM

Make sure you have the cam sensor set on the right 'groove'. The sensor body has two grooves, and you might be using the wrong one, wish will do nothing.