MacSerio

I've changed almost every part, set timing, even hollowed cats because smog tech could get a read from right tailpipe(it passed on left pipe) but my car is running horrible. Loss of power during acceleration and can't figure why. What should I check for? Have done plugs , wires , dizzy, coil, O2s , cleaned sensors vacuum leak check. What else?

jwog666

fuel pressure, engine compression, timing off due to slipped balancer ring, sensor failure (in range will not set a code most times)

yurizx6r

TPS voltage, EGR valve, EGR positioning sensor, exhaust leak, and bad MAF.

It could also be your computer. Does it stumble around 1,500 rpms? I'm not saying that's your issue, but it happened to me.

88 orangepeel notch

Pull codes, then get back with results.

It's funny it passed emissions running that bad.

mjr46

isolate misfire...if firing order is correct.......check engine worthiness.....= compression test and go from there

MacSerio

I finally pulled codes. I got a 33, 41, 66, 91, & 96. Fuel pressure is 34 running and o2s are new.

MacSerio

I'm leaking coolant and car runs got but there's no leak anywhere. Coolant turns orange and car pops at low Rpms when accelerating.

jwog666

how can it leak coolant, but not have any leaks?

jesse1125

If you mean you have to add coolant but there is no leak then it may be a blown head gasket.