Question about 1994 Isuzu Trooper

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1994 Isuzu Trooper o2 sensor, and other misc. problems.

Ok I am tring to get some help with this..... First I need to know where the o2 Sensor Indicator Light Cancel switch is located?? Second maybe someone can shed some light on this.. we replaced the o2 sensor, and the o2 light on dash is still on, we did everything we could to remove the code but no luck ( remove from neg battery for 30 sec, ect ). The trooper seems to be running very ruff and shimmy's. It almost seems like it is not getting enough fuel. When you put the gas peddel to the floor there is no power, it bogs down, then shimmy's, then shifts very hard. The stearing wheel shakes. Can someone please help me before I drive this thing off a cliff. Thanks so much in advance.

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  • Aimee Falk
    Aimee Falk Jul 20, 2009

    Well we are going to go get another o2 sensor sometime this week and see if maybe that was the problem. ( autozone told us o2 sensors do not go bad after 2+ mts ) Everyone is telling us to go get it checked at Autozone but they dont test for this year. I do not want to take it to a Isuzu dealer, they will bend me over. Thanks again



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When you replace O2 the light will not go off you must follow these steps, At 90K intervals, the O2 Sensor light will illuminate. After replacing the sensor you must perform the following procedure to reset the light. 1. Remove the instrument cluster. 2. Remove the tape from the hole marked "B" on the back of the instrument cluster. 3.Find the hole marked "A" and remove the screw from that hole. 4. Install the screw in the hole marked "B". 5. Recover hole "B" with tape. 6. Reinstall instrument cover. Once you travel 90,000 more miles you get to reverse the procedure. I think they should test the water at the places those automotive engineers work at.

Posted on Jul 29, 2009

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Get a different scan test done as it may have been faulty scanner itself [not unusual!]
if that gives the sme errors then reset it & test again
if that fails change the computor & test again!
good luck
Cheers Rob
PS: keep me posted on it please

Posted on Jul 20, 2009


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