Car randomly dies/odd idle
#1
Car randomly dies/odd idle
Weird situation going on here lately.
Over the past month and a half the car has randomly shut off coming to a stop light. I also noticed a few times today that when I clutch in but keep the car in gear while moving the idle will drop to between 250 and 750 and bounce until I clutch out and keep going. 60,XXX on the clock.
Mods: JLT intake and SCT tuner.
Ideas?
Over the past month and a half the car has randomly shut off coming to a stop light. I also noticed a few times today that when I clutch in but keep the car in gear while moving the idle will drop to between 250 and 750 and bounce until I clutch out and keep going. 60,XXX on the clock.
Mods: JLT intake and SCT tuner.
Ideas?
#2
Clean the inside of the throttle body especially between the blade and the bore. The drive-by-wire TB doesn't have an idle air control valve so any dirt that accumulates between the blade and bore can play havoc with the idle quality.
You could also clean the MAF sensor while you're there.
You could also clean the MAF sensor while you're there.
#3
6th Gear Member
I agree; most likely a dirty TB. I'd also give the MAF a good squirt of cleaner. When did you run a good fuel system cleaner thru the fuel tank? Seafoam and Techron are decent products. I run Techron about every 10k miles and Seafoam if I have an issue like yours.
#6
6th Gear Member
I still suspect the TB needs a good cleaning. This would be the most likely reason for your problem but the SeaFoam or Techron is good to do as preventive maintenance regardless.