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My Geo still doesn't start after resetting check engine light switch!

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  • Jeremy W.
    Jeremy W. Feb 20, 2012

    Year, make, model, and engine size?

  • bobbynikkel
    bobbynikkel Feb 23, 2012

    1990 Geo Tracker 1.6 L

  • Jeremy W.
    Jeremy W. Feb 23, 2012

    have you checked anything like...fuel pressure, spark, broken timing belt, etc?

  • bobbynikkel
    bobbynikkel Feb 24, 2012

    Yes!

  • bobbynikkel
    bobbynikkel Feb 25, 2012

    Yes! I have strong spark(blue) but no fuel pressure, cause I have no fire going to fuel pump! I replace fuel pump,ECM,FP relay

  • bobbynikkel
    bobbynikkel Feb 26, 2012

    Yes, I've got power to relay;I've jump pink with black with battery voltage,The fuel pump runs, But still don't start.

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I have a 93 geo tracker with the same problem. Mecanic told me to look under the steereng wheel colum. Next you have to take off the speaker left next to steering wheel then get a flash light. And theres supossed to be a switch down there you have to push it once and leave it back the way it was. Then turn your car on. And light will go thats how i fixed mine. When a geo tracker hits 150xxx miles it automatically turns the chek engine light on.. Good luck

Posted on Mar 23, 2012

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  • Cars & Trucks Master
  • 5,332 Answers

Bobbynikkel said - "Yes!"

Yes, What?

The more info you provide the better! One word answers will not help solve your problem. What you may think is the least important detail may be the key to solving your issue.

An answer like, I have spark and fuel pressure, does not help as well. I need to now how intense the spark is and how many PSI of fuel pressure you have.

It would also help to know what the code was that you erased. That very well may have been the one clue that helped solve your problem!

Posted on Feb 24, 2012

  • Jeremy W.
    Jeremy W. Feb 25, 2012

    Alright, now we are getting somewhere.

    Do you have power to the Control relay? This relay has to seperate relays in one package. The black with wihite wire supplies power to the relay. That comes from the ignition switch?

    If both sides f the relay are working than you should have power out on the pink with black wire (power to the fuel pump), The blue with black wire (power to the PCM), and the light green with red wire (supplies power to the throttle opener solenoid, egr solenoid, ptc relay and the tcm relay).

    The PCM controls the fuel pump side of the relay by supplying ground to the pink wire.

    You could try jumping the pink with black wire with battery voltage to see if the pump will run and start the vehicle. If it does than you know you either have a power supply issue from the ignition switch or a problem with the control side, pcmo grounding.

    I understand that you placed the PCM but that doesn't mean that there isn't an issue with the wiring to and from the relay or PCM.

    Check the above and let me know what you find.

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  • Cars & Trucks Master
  • 75,066 Answers

The check engine light being on indicates a problem in the electronic system that controls the engine, so resetting the CE light without reading the code that was set with the light being turned on by the on board computer has not fixed the problem that is keeping it from starting. This is an early system called OBD1, it requires a special scanner to plug in and read the fault codes you have. .

Posted on Feb 23, 2012

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: reset check engine light on 1995 geo tracker

I had the very same problem with my 94 tracker and it turned out to be something simple. My check engine light had popped on after it had hit 100,000. I went through all of the suggestions that people had suggested (unplug battery......etc) and still to no avail. Searching the internet, I came across a website called suzukiforum.com and there, this guy was able to help me with my problem. It turned out to be a maintenance switch that kicks on every 50,000 miles. This switch is like a secret that the auto manufactures use to ploy owners of their cars to bring to the dealer and then rack up the dollars in unnecessary "repairs". The switch is located under the dash and can be hidden anywhere. From the assistance of the guy on the forum, he was able to send me photos of this damn switch and possible locations where it may be mounted. I found mine in about 5 minutes, where it was attached to the steering column. It's a tiny switch, that you slide up or down, depending on what position it is in upon finding it. If it's up, then slide it in the down position and visa versa. Once you do this, the check engine light will go off. Make sure you do not have the car running and you can even unhook one of the battery posts, just to make sure you don't hit anything while rooting around under the dash. Good luck!

Posted on Apr 30, 2009

mitchjl_1692
  • 3 Answers

SOURCE: Check engine light stays on

Disconnect battery leads and reconnect to see if this eliminates engine light.could be a false signal.Also check gasoline tank cap if light comes back on.Replace cap.mitchjl_1692

Posted on May 27, 2009

redbeard00
  • 957 Answers

SOURCE: Reset Check engine light on 1993 Geo Tracker

A 1993 Tracker will have OBD1 technology. Just unplug the battery for 5minutes and plug it back in. If the light persists You will have to find out and repair the problem that your cars computer believes it has.

Posted on May 12, 2010

emissionwiz
  • 75066 Answers

SOURCE: how can i reset the check engine light on a 93 geo

disconnect the batt negative cable for 3 minutes or use a scan tool to reset the system.

Posted on Sep 29, 2010

airjer995
  • 5332 Answers

SOURCE: check engine light blinking and

If the check engine light is blinking it usually indicates there is a misfire. If the RPMs are low I would suspect a vacuum leak. It is very common for the vacuum tube neat the throttle body to become dislodged and cause the symptoms you described.

If you don't see any vacuum leaks the best first step would be to scan the computer for codes and then focus your attention on those codes.

Posted on May 07, 2011

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I had the very same problem with my 94 tracker and it turned out to be something simple. My check engine light had popped on after it had hit 100,000. I went through all of the suggestions that people had suggested (unplug battery......etc) and still to no avail. Searching the internet, I came across a website called suzukiforum.com and there, this guy was able to help me with my problem. It turned out to be a maintenance switch that kicks on every 50,000 miles. This switch is like a secret that the auto manufactures use to ploy owners of their cars to bring to the dealer and then rack up the dollars in unnecessary "repairs". The switch is located under the dash and can be hidden anywhere. From the assistance of the guy on the forum, he was able to send me photos of this damn switch and possible locations where it may be mounted. I found mine in about 5 minutes, where it was attached to the steering column. It's a tiny switch, that you slide up or down, depending on what position it is in upon finding it. If it's up, then slide it in the down position and visa versa. Once you do this, the check engine light will go off. Make sure you do not have the car running and you can even unhook one of the battery posts, just to make sure you don't hit anything while rooting around under the dash. Good luck!

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