Question about Cars & Trucks
why no symptoms stated?, or DTCs (so we can be on the same page?)
the car has and FSM that covers all this.
there is no idle sensor.
there are many sensors but idle is not one of them.
the Engine runs and will not run with bad cam and crank sensors
these 2 sensor, derive , RPM. and idle speed, is adjusted all the time
based on those 2 sensors
then the PCM controls idle via the ISC< the idle speed control valve.
its a valve. it controls idle air supply.
my guess is the engine stalls.
or races fast and has lack of power.
and the CEL lamp in the dash glows and is screaming for you to scan the PCM? right? and you did not?
if you did it will have DTCs warning you of idle related failures.
or as any mech knows, idle is the LAST thing to work right.
if the engine runs bad, idle can fail.
the ecu controls idle at all times, if it can't we do test to find out which is it?
On newer cars, there are up to 4 (count them) 4 TPS sensors.
2 on the right foot throttle and 2 in the throttle body.
if any of the 4 dont agree, the CEL glows and the DTC get stored.
telling you that this Happened, not looking and scanning the PCM
you miss all those facts.
in most new cars if that happens the PCM goes to limphome mode
so engine power is greatly limited, after all the idle is out of control
and no car maker wants to be TOYOTA (read the news)
how to , is covered in the FSM, buy one,
and at alldata.com
in some cases it takes a dealer TOOL to re-learn the idle controls.
that fact is there too.
and warning 2, some TPS can not be changed,
you must buy a whole new throttle body.
other cars, like, my new jeep its a new idle; and throttle motor.
You car has throttle by wire, you need to learn how this works first.
then fix the car.
Posted on Jun 05, 2014
turn the key to the on position a see if you can here a buzzing sound around the fuel tank,if you don't hear a sound then. (be very careful while doing this) with the key off take a fuel line coming from the tank loose,make sure its pointed away from you and turn the key to the on position,see if any gas comes out,if not then your fuel pump is probably bad.
Posted on Mar 05, 2009
souds like you need a new throttle valve and once youve got tyat you need to carry out basic settings on the valve to adapt the valve to ecu good luck gtiR out.
Posted on Jul 19, 2009
Lightning bolt on dash starts blinking and the freakin truck shuts off on the highway in the center lane. Real nice Dodge. Nice way to kill someone. Any body have aclue what happens to the fbw.
Posted on Oct 15, 2009
Removal & Installation
Throttle position (TP) sensor electrical connector
Posted on Apr 25, 2010
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