Bourbon powered V8
Join Date: Sep 2002
Location: Canberra, Australia.
Re: Hunting idle 675-725rpm
I had a bad idle on my EF - at a set of lights, it would idle so low that the oil warning light would come on. The plugs and leads were brand new when i bought the car, so I tried cleaning the ISC valve - seemed to work for a day or so, then i replaced ECU. This made it better, but still not great. I adjusted the base idle up about 50rpm (to 750) - again better, but still not happy!
As well as that I also had this sort of 'stutter', or flat spot, where the engine would sort of go along with no power, then all of a sudden it would rev freely with heaps of power - sort of like turbo boost.
I removed the Oxygen sensor, which made the car idle at around 1100-1200 rpm, but the stutter was gone. Reconnected the O2 sensor - stutter was back. Bought a new O2 sensor - car is now fixed, though I will have to see how it goes on cold start now.
AU1 XR8 Auto 147.9 rwkw (approx 215 fwkw)
AU2 Wagon HAD Auto
17s, Pacemakers, 3" Intake & Pod filter (The Family Hack)
FPV-XR Club ACT