I noticed that even after my truck is nice and warm or has been driven for a while if i put it in park and it sits for a couple minutes the rpms will drop and kick back up to normal but my afr jumps and stays at about 16-17 and gets a slight lope. if i leave it unchecked my truck will die. thought it was perhaps a bad tune so i redid my tune and nothing still happens. it happens everytime not just once in a while. Any ideas?
rough idle question
- Thread starter 02_lightning_NP
- Start date
Man sorry to hear that thing is still giving you trouble. So does it just keep revving lower and lower until it dies or does it surge up and down and die? Does it only stall in park/neutral or does it do it in gear?
it only does it in park and neutral. rpms really dont move up or down much it just gets rough and dies.
Check your TPS voltage the meter may be loose. Or a vacuum leak
Vacuum leak would be my first guess.
Bad IAC would be my second.
Bad IAC would be my second.
my iac was loose. thanks guys
So are you coming to the track Labor day weekend?
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