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Engine idle problem! Help please

Posted: December 6th, 2015, 7:50 am
by streetglow18
Tuners have an A33 Cefiro....v6.....when the engine cold in the morning and I start it stutters and jump and the idle does not remain steady it drops when this happens.

The idle is set correctly.... The spark plugs are good......the coilpacks are good.... The tps is good (throttle positioning sensor)....

Any ideas what can be this problem?? Could it be the throttle body needs servicing or a sensor is bad??

ONCE I REV IT UP AND ENGINE BECOMES HOT IT DOES BOT HAPPEN!

Re: Engine idle problem! Help please

Posted: December 6th, 2015, 8:20 am
by 1UZFE
Clean d TB also clean d idle sensor.

Re: Engine idle problem! Help please

Posted: January 21st, 2016, 12:52 pm
by ShIvAm
Got this sorted? Should check your o2 sensor, try unplugging it and see what happens.