Possible Computer Problem???

[jnxV6]

I have a 94 Camaro and it recently out of the blue started stumbling under acceleration. I didn't drive it for about 4 days when I put new front shocks, rotors and pads on, then I changed the oil because it was that time and took it for a drive and during that drive it started. I know the shocks, rotors/pads, or oil wouldn't be the cause. I took it to a place and they told me it was my spark plug wires and plugs but I put new Accel wires and AC Delco Platinum plugs on about 3 months ago. Also at that time I added new Accel Coils. The Haynes manual I have says if it stumbles its from the timing being wrong or dirty/clogged injectors or low fuel pressure. I have put fuel system cleaner in it before this happened so it shouldn't be the injectors. The timing is controlled by the computer since it is a DIS, so is my computer bad or am I missing something?

[jnxV6]

Re: Possible Computer Problem???

The engine only stumbles when you punch it when idling when in park or when you punch it when driving, other times it is nice and smooth.

[Mogobs30th]

Re: Possible Computer Problem???

Are you throwing any codes? SES light coming on?

[LETZRIDE]

Re: Possible Computer Problem???

I had my car stumbling the same way, during hard acceleration...turns out i broke one of my spark plugs when i replaced em, swapped it out and she runs beautiful.

[speedyz]

Re: Possible Computer Problem???

If you are sure your spark plugs and wires are good, check your coils and ICM, when I took my ICM and 3 coils into autozone, they all tested fine. I bought a new ICM and installed that with my old coils and it solved the problem. Came with a lifetime warranty, too, so I'm set for a while.

[jnxV6]

Re: Possible Computer Problem???

Are you throwing any codes? SES light coming on?

No codes and no SES light coming on.

[jnxV6]

Re: Possible Computer Problem???

If you are sure your spark plugs and wires are good, check your coils and ICM, when I took my ICM and 3 coils into autozone, they all tested fine. I bought a new ICM and installed that with my old coils and it solved the problem. Came with a lifetime warranty, too, so I'm set for a while.

The coils are Accel coils and are 3 months old, but I will pull my ICM off and take it to get tested.

[jnxV6]

Re: Possible Computer Problem???

I had my car stumbling the same way, during hard acceleration...turns out i broke one of my spark plugs when i replaced em, swapped it out and she runs beautiful.

I replaced my spark plugs 3 months ago but I will pull them out and get new ones and see if it runs better and if it does I'll take the old ones back.

[LETZRIDE]

Re: Possible Computer Problem???

I replaced my spark plugs 3 months ago but I will pull them out and get new ones and see if it runs better and if it does I'll take the old ones back.

If there only 3 months old you dont have to go buy new ones...Just check them to makes sure there not cracked/damaged and make sure there tight.

Since there 3 months old and the problem just started i'd check that there all tight first...but dont buy new ones unless there damaged, waste of money

[jnxV6]

Re: Possible Computer Problem???

If there only 3 months old you dont have to go buy new ones...Just check them to makes sure there not cracked/damaged and make sure there tight.

Since there 3 months old and the problem just started i'd check that there all tight first...but dont buy new ones unless there damaged, waste of money

They look fine, I am going to get my ignition control module tested tomorrow

[jnxV6]

Re: Possible Computer Problem???

I reinstalled my original coils and it is running like it used to, thanks for all the help.