I have a 88ix. I recently was having an idle issue where it was revving up to 1500 and holding there. I figured this was probably a vacuum leak. I proceeded to replace the following just to be safe and it needed a tune up anyway
Injectors
Fuel rail
FPR
Fuel filter
All vacuum lines, boot, etc
Fuel line going to and from rail
Cap, plugs, rotor
O2 sensor <6 months ago
Now the idle speed is steady at 650-700. The issue now is that while the idle SPEED is perfect, the whole car is bouncing. The exhaust makes a "putt-putt" sound while it idles. When throttle is engaged ever so lightly, the RPMs dip to the point of almost stalling then goes back to normal. I took it for a 5-10 minute drive and it felt as if it was running with half power. This is quite troubling. I've read through many different posts. I cleaned the ICV, throttle body and AFM, still nothing. Checked for vacuum leaks, nothing. Anyone have any other ideas?
Injectors
Fuel rail
FPR
Fuel filter
All vacuum lines, boot, etc
Fuel line going to and from rail
Cap, plugs, rotor
O2 sensor <6 months ago
Now the idle speed is steady at 650-700. The issue now is that while the idle SPEED is perfect, the whole car is bouncing. The exhaust makes a "putt-putt" sound while it idles. When throttle is engaged ever so lightly, the RPMs dip to the point of almost stalling then goes back to normal. I took it for a 5-10 minute drive and it felt as if it was running with half power. This is quite troubling. I've read through many different posts. I cleaned the ICV, throttle body and AFM, still nothing. Checked for vacuum leaks, nothing. Anyone have any other ideas?
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