Partial throttle hunting problem.

[yiug412]

Hi there

I have just changed my clutch and flywheel at my frd\'s workshop on saturday. Very excellent result!  in low rev it is more lively now and gear shift is a lot quicker.

Btw after the work driving back from M42, i can not hold on part throttle at the primary throttle range, the car will hunt and AFR goes more lean and lean until it reaches 22.0, i have to let go and step on it again and same thing happens. The problem forced me to drive in the secondary throttle range and the AFR is fine and car drives fine even in full throttle.

Back at work i have replaced two vacuum hose that poped out and even disconnected the whole stock boost controlling system and now fully controlled by my greddy controller.Also readjusted the TPS when the car is warm using the two lamp method. Same problem happens.

One weird thing i have spotted when i use the two lamp method. When the throttle is closed i cannot make both lamp illuminate no matter how far i turn. When it is set correctly one lamp on one lamp off. I step on the throttle a little bit both lamp illuminate then one switches off again. more throttle then both lamp switch on again. Would that \'off on off\' period causing me the hunting at partial throttle? Anyone had similar problem before?

Cheers

Louis