My 1991 dodge stealth backfires intake and exhaust timing marks lineup all for punch marks are align any answers the o2 sensors are new as are plugs and wires. I need help I keep thinking a bent valve I want to do a compression test but I'm not sure how to with the intake in place, What about a vacuum check for compression if so how do I do this compression test? on this car.

SOURCE: rough idle , car run good after 1000 rpm ,did a

so by the timing chain issue , you have a 2.7l v6, was it rough idle before the chain replacement, if no than your chains are out of time by 1 or 2 teeth, on cam gears, this is a delicate motor on timing, of course a compression test would a have been first to do before any teardown. GOOD LUCK RDJRP

SOURCE: 2001 dodge durango 4.7liter 4x4 i replaced front

bank 1 sensor 2 is the left downstream sensor (1/2) is located in the exhaust downpipe just after the mini-catalytic convertor, and before the main catalytic convertor. Now the meaning of this is that your not getting any 12+/12- heating on sensor, which means voltage is supplied to heat sensor up. You have a O2 sensor heater relay, but not getting problem with 2/2 sensor tells me you need to check/inspect the wiring for 1/2 sensor, open wiring for 1/2 sensor and inspect

SOURCE: 2004 dodge ram 1500 5.7 hemi. misfire on multiple

sounds like you need an engine my friend or a good mechanic to rebuild that one

SOURCE: MASS AIR FLOW SENSOR? 1991 Dodge Stealth RT

Did you ever end up going and getting another maf sensor? i have been having the sameee problem when i unplug the sensor it works fine but when i plug it in the car sputters and today i went out and bought a new maf sensor from autozone and it stillll sputters when the new one is plugged in but as soon as i take it out it works fine i dont understand? so i was seeing if you have figured out anything to fix your problem?

SOURCE: 1991 dodge stealth problem

I have a 1991 Dodge Stealth SOHC. It had the same problem and after replacing the fuel pump, fuel filter and tearing the car apart to no avail, I gave up and took it to the mechanic. The problem was the main computer located behind the radio/cd player. He replaced it with one from the junkyard ($200) and it works fine now.