Lude Generation

Hi guys, my B20a7 89 gen 3 man prelude is jerking under acceleration. It idles fine, but when driving, in the transition from light to medium throttle pressure, it hesitates than peaks and repeats...

Checked the usual stuff and just did distributor timing, no difference.

Any ideas?

Cheers Bees.

This happened in my girlfriends car and once we changed the fuel filter it was completely gone, it was a turbo diesel car so it may be different. However i know its better to try the cheaper things first.

Fuel filter is a good shout, also O2 sensor if it's FI.

Cheers, done the fuel filter twice now, the first one didnt fit perfectly. No difference. Will try tps throttle position sensor and 02 sensor and let you know how i get on.

Is this when the engine is hot or cold or both?

Also, can you replicate the issue stood over the engine?

Hi, it does it hot or cold but it wont do it stationary, only when driven (under load). Really obvious, bounced along, almost undrivable. No codes showing and have reset.

Hope that helps...???

I had a old saab an it used to do something what you had after a lot of head scratching turned out to be the rotor arm so I changed dizzy cap an rotor arm an fine from there on might be worth a check

Timing sounds out.

Had the strobe light on it. It was out by a couple of degrees but but its made no difference. It runs like a dream on the drive ( stationary).

plug leads