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I have an automatic 1998 Isuzu Rodeo V6 3.2L. When I put it in park the rpm's jump up to 2000, 2500 and go back when I put it in gear and at stop signs, red lights etc. It acts like I am pushing on the accelerator while the rpm's go up also. I replaced the IAC, TPS, and mass airflow sensor and its still doing the same thing. I'm clueless at this point so any insight would be greatly appreciated.

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  • 13 Answers

Generaly clean the throttle body.carry out a full ecu relearn.disconect the battery and leave it for 10 mins.check the throtle cable etc.check that the charge rate dose not exceed 15 vlts, they are known to do this.

Posted on Dec 02, 2012

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  • Harley Gilmore Dec 02, 2012

    So clean the throttle body, conduct a ECU relearn, unhook the battery cable for 10 min. and check the throttle cable? How do you do the ECU relearn?

  • Harley Gilmore Dec 02, 2012

    So clean the throttle body, conduct a ECU relearn, unhook the battery cable for 10 min. and check the throttle cable? How do you do the ECU relearn?

  • Harley Gilmore Dec 02, 2012

    15 vlts to what?

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Posted on Jan 02, 2017

  • 11 Answers

SOURCE: isuzu hombre check engine light

after you did that did you hook it to a car computer to reset the lite? most need this and you can go to a auto zone and rent the computer for free just a deposit and then you get that back. the computer will do it almost for you.

Posted on Feb 16, 2009

mechanicm639
  • 253 Answers

SOURCE: I think maybe my TPS is gone in my 1998 venture

You should really have the van scaned before you put any more parts on it. Autozone will scan it for free. You could spend alot of money just putting parts on it. If you can come up with a code/DTC for your problem then let me know and I will be better able to help you. Good Luck

Posted on May 16, 2009

keithheavili
  • 410 Answers

SOURCE: Engine will not idle, stalls at stop lights etc - EGR code

To me if the engine will not idel and stall once you have stopped, that points to an IAC (Idle Air Control sensor) which is located on your throttle body.  The part is very easy to get to and changes out pretty quickly.  Hope this helps.  Thanks for an honest rating and for using FixYa!

Posted on May 20, 2009

  • 60 Answers

SOURCE: Same problem in a 2004 MPV

Hi there im in australia and i have come across a few mazdas not just the mPV that have this same problem. if it was the air flow meter you would be able to accelerate as the computer wouldnt pickup that more air is entering the engine therefore it wouldnt compensate with fuel! try disconnecting the battery with the negative terminal for 60 seconds. if that dosnt work try cleaning the throttle body and IAC and get someone with a decent scantool to reset the idle. Hope this Helps. Regards Ben

Posted on Aug 07, 2009

Lloyd Six
  • 560 Answers

SOURCE: Idled high, replace IAC and PCV, now idles low and stalls

On modern day cars the parts that get fitted need to be adapted to the ECM using a decent diagnostic machine. I bet that this was not done and the car is now suffering as a result.
Something to try is resetting the ECU, simply disconnect battery for 10 minutes, reconnect, then start car from cold *without touching gas pedal* and leave idling until the rad fan comes on (this resets all the base idle settings) then take it for a drive - hopefully will solve the problem

Posted on Nov 18, 2009

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Hello
The Engine and Automatic Transmission (not applicable to manual transmissions) in this vehicles drive train are fully electronically controlled by a computer called the PCM and TCM (Power Train Control Module, Transmission Control Module). When a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM. Also always check fuel pressure for correct spec for your make and engine type.

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1 Answer

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