This problem is driving me crazy, I hope someone can shed some light on the situation.
CIS-E Jetronic 1.8L 16V Symptoms: Hard to start when it's cold. I have to give it gas, and even then it takes 4-5 seconds. If I try to drive the car without letting it sit for 5-10 seconds, it sputters and tries to die, but never does. Seems to start a little better if I prime the fuel pump a few times. Idle misfire at all engine/ambient temperatures. Feels like it's missing on 1 cylinder. Turning on the A/C seems to help a little bit, but not much. Sputtering/hesitation at warmer engine/ambient temps. This only occurs after driving at highway speeds(65mph+) for extended periods. It happens after I've slowed back down to stop-and-go traffic speeds, and only when I accelerate in first and second gear. Recent new parts(within the last year or so): Plug wires Distributor Cap Rotor Ignition Coil Accumulator Fuel filter Injector o-rings Vacuum lines 02 Sensor The DPR is working and set properly, I recently cleaned and added grounds, and the spark plugs are about a month old. The hard start/misfire was something I just dealt with, but the hesitation and sputtering(which just started happening) pushed me to the point where I need to do something. Thoughts/experiences appreciated. -Dave '88 Jetta GLI 16V (Mine) '88 Jetta GLI 16V (Hers) '81 Scirocco S
