Rough idle/no rev problem

[Smallblock454]

Thanks for the video. This doesn't sound like rough idle, that sounds like it's running only on 3 cylinders / one bank.

Can you rev it up? Or does it only run on idle like shown in the video and does it die if you press the throttle?

Did you check the coolant water for oil? Any cracks in the engine housing?

Do you have the possibility to do a compression test / or have you done a compression test on each cylinder?

Did you check if the injectors work correctly?

Have you tested the ignition coils? Are the coil packs OK or do some of them have cracks?

Regards, Markus

[tada]

Originally Posted by Smallblock454

Thanks for the video. This doesn't sound like rough idle, that sounds like it's running only on 3 cylinders / one bank.

Can you rev it up? Or does it only run on idle like shown in the video and does it die if you press the throttle?

Did you check the coolant water for oil? Any cracks in the engine housing?

Do you have the possibility to do a compression test / or have you done a compression test on each cylinder?

Did you check if the injectors work correctly?

Have you tested the ignition coils? Are the coil packs OK or do some of them have cracks?

Regards, Markus

It is only running on cylinders 1, 2, and 3. The other bank is constantly flooded.

Can't rev it up. Dies if gas is given.

No cracks in the housing. Coolant and oil are clean. Oil is starting to smell like gas.

Have not done a compression test.

I checked all injectors with a noid light. Light is pulsing on all cylinders.

Coil packs have no cracks, ohmed out correctly and I have spark at each plug (grounded the case of each plug while attached to the coil pack and verified spark).

So I now have spark, injector pulses, and vacuum. I guess I should run a compression test. The only thing left is to get the injectors cleaned and flow matched.

Thanks for the suggestions.

Tom

[jdraupp]

Compression test is probably the way to go. Dang, I was really hoping we had you figured out with the AOS. Sounds like this thing was seriously neglected by the po.