OK so with regards to my Van (1988 Westfalia) I last left the hesitation problem to the updated MAF harness or cheaper fix... the capasitor fix which I did. As luck would have it.. I still have a hesitation from a stopped position hot or cold before the power band kicks in. I to date have replaced the plugs, fuel filter, and checked the cap, rotor and wires (looked good, cleaned the contacts on the cap and rotor and no arcing from the wires) I have also cleaned the intake, Maf, throttle plate and throttle body. Still not much of an improvement. I read all about 02 sensors online and started leaning toward that but its an expensive guess without ohming it out for response. As I see it, I next plan to eliminate the slight exaust leaks at the exaust joints (as noticed when it was cold and puffing out these joints) to eliminate the false reading to the O2 sensor( I think) and possibly "gut" the cat convertor (though I don't know it this will worsen the problen with exaust back pressure reading to the O2 sensor). And finally will consider replacing the O2 sensor if it solves this concern or helps the fuel economy.
Any suggestions or am I on the right track?
Tristen
86 vw golf (pepi) 88 vw vanagon (bogart)