I have install a Apexi PFC and commander to my 1993 fd, It is single turbo converted.
I have reset the apexi back to factory base (I think) but the car seems to bounce on the revs at idle from 1000-2000 rpm??? also wont let me rev the car.
If I start the car with foot on the accelerator it will rev right through as expected, but as soon as you drop below 4000 rpm it does the above bouncy idle?
any ideas
Mate, what procedure you adopted when you installed the PFC? I am not a guru but, I think you have to adopt a certain procedure to install one.
Cheers
gave you advice on what to do in your other thread.
Quote from: Grant Monkhouse;809889gave you advice on what to do in your other thread.
yes thankyou your advice was good I have now solved the problems I had..
Do tuners come on here from time to time and comment? any known members etc
Normally hunting (bouncy idle) is caused with the idle cells being too rich and the O2 control which uses a narrow band sensor sends a very rich signal to the ECU, the ECU cuts the fuel, the sensor senses a very lean condition, again the ECU injects fuel, if it hits a cell which has very rich values the cycles starts again ergo hunting
Quote from: BlitzBoy;809985Normally hunting (bouncy idle) is caused with the idle cells being too rich and the O2 control which uses a narrow band sensor sends a very rich signal to the ECU, the ECU cuts the fuel, the sensor senses a very lean condition, again the ECU injects fuel, if it hits a cell which has very rich values the cycles starts again ergo hunting
Best explanation I\'ve heard in a long time.