voyageur

Hi,
New on the forum and having a problem that has been discussed before, but there is no clear solution.
My RX7 fc start cutting out and shakes violently when applying any significant throttle under load. If I lift off gently on the throttle and play with the clutch I can get the engine to behave and car can be driven just about.

Its been discussed that resistor controls for the secondary injectors may be at fault. Also someone changed all the injectors which solved the problem. And fuel pump has been mentioned as well.

Any help to get this sorted would be much appreciated

ekeaux

I was having this issue before. Turned out my TPS was out of adjustment. Once I fixed that and adjusted idle speed also, this behavior stopped. Worth a try!

WondrousBread

I'd also advise you check the TPS. It isn't difficult to set and the process is well documented. I like the two-lamp method, but the voltage method also works. I've had poor results from the resistance method but others have had it work for them so it is worth a try.

Otherwise I would suspect a fuel issue.

voyageur

Thanks,

I have adjusted the TPS, it was a bit out at 1.4 k and ive adjust it as close to 1.0k as I could. It seems keeps the rews more steady on idle. However, the cutting under load still persists.

I've noticed that it cuts the throttle (goes into safe mode) as soon as the boost reaches zero (I have a boost gauge installed). It will not get above zero. I can drive the car as long as I keep the boost down, so very gently on the throttle. But as soon as I apply throttle and the boost nears positive it cuts out. I suspect its something to do with this?