No luck, last thing i tried was to unbolt the downpipe to check if maybe the cat was clogged but no change. I live in the N.E. area off naco and o'connor.

I changed the power transistor. It still drops idle and acts like it wants to die. The plugs look ok, and good spark from the wires.I noticed a lot of liquid at the muffler, now I'm not sure or not if it was gas.

I changed out the power transistor and it smoothed out somewhat but still drops rmp and acts like it wants to die and looks like raw gas from the muffler.

i did check for that, compression is 175-180, i just changed the power transistor and got a change, now it dips idle and its running so rich that i;m getting unburnt gas at the muffler.

How do you read pulse width? The only thing we used other than a multimeter was a noid light

does anyone know what the voltage at the injectors is supposed to be? my brother -in-law was a master tech for many years and he tested the injector wiring and it was reading full voltage (13+) volts, he said it was only supposed to read 5 volts.

the ignition control module is located just to the left of the coils packs, it has a rather wide connector plugged into it.

Does anyone know what the voltage at the injectors is supposed to be?My brother-in-law was a master tech for many years and he tested the injector wiring and it was reading full voltage (13+) volts, he said it was only supposed to read 5 volts.As of right now my 98gst is bone stock and he...

i bought a brand new coil pack, plugs and wires, and its still doing it, i even replaced the fpr, had a fuel pressure test done and nothing.

where is the resistor pack located?

What, if any are the differences between a head off a 96 4g63t and a 98?

I have a 98 gst, about a week ago it threw the random misfire code, bucked, sputtered, backfired and quit. I had it towed home, changed the spark plugs (checked gaps) plug wires, coil pack, fuel filter. after theat it seemed ok till it got to operating temp the thre another code for misfire...

I have a 98 gst, about a week ago it threw the random misfire code, bucked, sputtered, backfired and quit.I had it towed home, changed the spark plugs (checked gaps) plug wires, coil pack, fuel filter, after that it seemed ok till it got to operating temp the threw another code for misfire...

But the last code it threw was for cylinder 3 misfireok, its not the timing, funny thing is that the stutter isnt constant, it does it once or twice every couple of minutes, but gets worse after its been driver 10+ miles. after about 14 miles the ilde started to bounce around about 300rpms or...

Ok, replaced injectors, everything seemed fine till I drove it to work. It's stuttering a lot less, but I am getting either misfire or detonation. What else could this be?