Pfc And Cold Start: 800rpm Then 1500rpm Then Back Down..

[Andi]

Guys

I've installed my PFC and have done the idle procedure (made sure my car was warm too) but my cold start idle is still werid. What happens is: the car will turn on, the idle will just sit at 700-800rpm (where is sounds like its not revving enough) then it will pick up to 1500rpm then slowly come back down as the temperature rises. With the stock ECU the idle will jump straight to 1500rpm then slowly come down as the water temp rises, but with the PFC it stays at a 700-800rpm for a few minutes before doing that.

Have I screwed up the idle procedure or do I have to make some adjustments some where?

Thanks,

Andy

[700HP-GTR33]

Guys

I've installed my PFC and have done the idle procedure (made sure my car was warm too) but my cold start idle is still werid. What happens is: the car will turn on, the idle will just sit at 700-800rpm (where is sounds like its not revving enough) then it will pick up to 1500rpm then slowly come back down as the temperature rises. With the stock ECU the idle will jump straight to 1500rpm then slowly come down as the water temp rises, but with the PFC it stays at a 700-800rpm for a few minutes before doing that.

Have I screwed up the idle procedure or do I have to make some adjustments some where?

Thanks,

Andy

No it is all good.......it is hunting back and forward..like mine.....

You will find if you drive it for a 20 to 30 seconds and stop the revs will be be over 1000rpm at idle when cold.

I have the same thing happening...lol