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D15 multi point idle surge

PostPosted: Sat Feb 16, 2019 10:11 pm
by motoxash
Basicaly my misses brought a ek coupe with a D15 multi point engine fitted.
you start it up idles fine leave it to get warm and the idle surges up and down. I've unplugged the idle control valve then the car eraticle revs all over the place and isn't drivable at all and eml comes on you plug back in turn the car off and restart again and the light goes out but it goes back to idling badly again and starts surging. you can drive it fine then just when you come to stop its starts all over again its driving the misses mad I've promissed i will sort it this weekend to make her happy D15 with. D16z6 inlet po6 ecu on jumper harness :?

Re: D15 multi point idle surge

PostPosted: Tue Feb 19, 2019 5:40 pm
by EconoBox
Have you checked for vacuum leaks?

Re: D15 multi point idle surge

PostPosted: Mon Apr 08, 2019 8:39 am
by spoooned
vacuum leaks, injectors problem or fuel pump, a lot of reasons, actually