Has anyone performed a back pressure test on the exhaust when it was hot?

Answered by saturntech9 (expert)
23,193 answers provided

No. But that sounds like a very good idea. I will try get it tested asap.

Response from Rick44129
1 question asked

I think so let me know what you find.

Answered by saturntech9 (expert)
23,193 answers provided

It has been a very long time, i finally got the money for the cats, and o2 sensors, my cats were mostly clogged, but, the acceleration problem is still there, even tho the car feels alot better, and the gas milage raised a bit, but it still is not good . A recent update is , I acceled full throttle so show someone how it accels so bad, and it jumped like as if i was letting go of the throttle or somethingthen violently smashign the throttle, (which sounds like TPS but i changed that already)
i DID need cats, so im glad i changed them, but this issue is eating me alive. im mainly worried about my new cats, wondering if this issue is the reason my cats got clogged up. telling the computer to dump too much fuel in cylinder

Response from Rick44129
1 question asked

Has anyone done a Injector balance test?Or tested the coolant temp sensor?

Answered by saturntech9 (expert)
23,193 answers provided