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1996 Geo Tracker idle
#4
automatic or manual trans. ?
NEW EGR OR USED? (the EGR is 5min work to eliminate, close it by hand if stuck open, and plug the vacuum line.
if the throttle, at failure allows you to race rpm faster (super easy,) as it stalls easy, its NOT the EGR. EGR sticking open takes agressive right foot actions.
if super easy to raise RPM with right foot action, it can be the ISC, sticking closed, or the idle switch dead. (open switch , due to calibration of TPS wrong)
if you defeat the EGR, and it's hard to raise throttle at fail ,its low fuel pressure. (low fuel pressure would blog, not misfire, is it misfing at failure (rough)

id need to know what happens in details, at stall. (near stall)
i can see the EGR fail as I stop, is see rpm drop like a rock below 800 (the ecu tries to hold it but cant)
the RPM drop is one of 3 things.
EGR stuck open (hard to save but can)
ISC stuck closed (sticking, or dead because TPS calirbration wrong, and x10 that on automatics in Drive. the M/T has no load on engine, with chutch in, unlike automatic trans.
the engine is misfiring badly due to many reasons.
or is bogging from lack of fuel..

tell me what the right foot action does at the moment of failure.. when you use the right foot, you are adding air, the MAF sees that and the MATCHes fuel to air and engine races.
if it can't race, at failure. no matter how aggressive my right foot is, and it's misfiring now, it can be flooding or if it bogs, hard. it's lack of fuel;....
what it does at failure, with you correcting it , solves, this.
easy to save?
hard to save? tad had but can. EGR leaks)
impossible to raise throttle.?
bogs more?
misfires hard.?

i take it the CEL lamp is not glowing running , right? but does at key on.
http://www.fixkick.com
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Messages In This Thread
1996 Geo Tracker idle - by Garemie - 05-25-2015, 03:49 AM
RE: 1996 Geo Tracker idle - by fixkick - 05-25-2015, 04:21 AM
RE: 1996 Geo Tracker idle - by Garemie - 05-26-2015, 04:29 AM
RE: 1996 Geo Tracker idle - by fixkick - 05-26-2015, 07:45 AM

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