So I have hit all the things I can think of. This story actually starts over a year ago, when my ix developed this stutter and it progressively got worse. In fact, it may have had a 4000rpm stutter and then it acquired a new stutter that promptly got so bad I couldn't drive the car.
I swapped:
AFM
TB/TPS
Engine Harness
DME
CPS
Injectors
Cap and Rotor
Ignition Coil
Ignition Wires
(maybe some other things)
and then the item that actually fixed things, The Harmonic Balancer that the CPS reads off of.
But it didn't fix it 100%. I've lived with it for a year now and decided to chase it again. I thought maybe the distance of the CPS is off, but that thing couldnt be any closer to the balancer. Unless we're talking valve clearance levels with a feeler gauge.
The CEL comes on, it only happens at full throttle. I don't need to lift, it's a momentary hard jerk and then it keeps pulling. The engine pulls hard. It's not consistent. Last Saturday on 20ish WOT pulls, it only did it on first one. Today it did it on all of them. Today I replaced the injectors, the dme, and the afm again. No change. I unplugged the O2 sensor and TPS, also no change.
I swear it has to be an inconsistent ground or electrical connector somewhere, but hitting random things does not change anything.
Searching does not produce anything that I haven't already tried. But still, please throw your ideas at me.
I swapped:
AFM
TB/TPS
Engine Harness
DME
CPS
Injectors
Cap and Rotor
Ignition Coil
Ignition Wires
(maybe some other things)
and then the item that actually fixed things, The Harmonic Balancer that the CPS reads off of.
But it didn't fix it 100%. I've lived with it for a year now and decided to chase it again. I thought maybe the distance of the CPS is off, but that thing couldnt be any closer to the balancer. Unless we're talking valve clearance levels with a feeler gauge.
The CEL comes on, it only happens at full throttle. I don't need to lift, it's a momentary hard jerk and then it keeps pulling. The engine pulls hard. It's not consistent. Last Saturday on 20ish WOT pulls, it only did it on first one. Today it did it on all of them. Today I replaced the injectors, the dme, and the afm again. No change. I unplugged the O2 sensor and TPS, also no change.
I swear it has to be an inconsistent ground or electrical connector somewhere, but hitting random things does not change anything.
Searching does not produce anything that I haven't already tried. But still, please throw your ideas at me.
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