Question about 1996 Isuzu Trooper

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Have a 1996 Isuzu Trooper LS, check engine light came on so I checked it with a scanner and it said generic code PO 133, which is a slow response, or slow switching so I put an oxygen sensor on, check engine light stayed off for a while, but then came back on with the same code. Would the map sensor or any other sensor make this code show up.

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I had the same thing. It is something to do with emissions apparently. I was told to check the fuel cap ! I put some silicone on the seal, cleaned it up, put it back on with the correct number of clicks and after about 15 minutes of driving, the Check Engine light stayed off.

Posted on Jul 30, 2010

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Its not likely it could be another sensor. p0401 is the code for map sensor, try erasing with a code scanner, light may stay out.

Posted on Jul 21, 2010

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1 Answer

Why does my idle not run smooth and engine l not rev up on my 02 trooper


Is Check engine light on? If so you need to have a OBDII/EOBD test ran for code identification.

May 24, 2014 | 1996 Isuzu Trooper

1 Answer

What are codes p0401 and p0300 mean on a 2000 isuzu trooper


P0401 is EGR problem
P0300 is a cylinder 3 misfire.
Replace EGR valve and do a full tune-up.

Mar 19, 2014 | 2000 Isuzu Trooper

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P1442 isuzu 1996


its g-sensor located at under chassis rear passenger near gas tank

Oct 01, 2012 | 1996 Isuzu Trooper

1 Answer

I have 1996 Izuzu Trooper. The "Check Engine" light is "ON". What are the problems with the engine? Please advise!


The PCM has the answer to that. It is just telling you there is an issue with one or more of the systems it controls. What you have to do is get any codes that are stores to know what the problem is.

Autozones, or maybe other stores, will hook up a code reader and check to see what codes the PCM is telling you.

Or if you're a weekend warrior that works on your own stuff then invest in at least a code reader. Actron is pretty good and start around $75. I have seen code readers/mini scanner (they show live date from the sensors and such) at Harbor Freight for around $60.
Plus some people like to buy tools and its a good excuse to do that!

Sep 14, 2011 | 1996 Isuzu Trooper

1 Answer

I have a 1997 ford expedition 5.4 L with the check engine codes of PO153 and PO133 coming on.... the truck stalls and jumps need to know what part to replace or how many i need?


PO -133 O2 Sensor Slow Response

Po -- 153 same thing


Check for vacuum leaks --every where

Clean MAF Sensor -CRC MAF Cleaner

Replace the 2 --front O2 Sensors, if over
100,000 miles on them The ones closest to motor

Use the OEM Type not the cut & splice
universal junk

NAPA can order them
Should be Bosch or NGK

Codes do not tell you anything about what is wrong
or what to replace.

Jun 11, 2011 | 1997 Ford Expedition

1 Answer

Warning light on dashboard of 96 isuzu trooper i have no manual and i don't know what the warning light is for


If the warning light is CHECK ENGINE, take your vehicle to your local Autozone. They will hook a scanner up to it for free and tell you what the code is. If you post the alarm code on this website, you will get a description back of what the potential problems are.

Apr 05, 2011 | 1997 Isuzu Trooper

1 Answer

1999 isuzu rodeo LS: Revs high sometimes then revs low to the point it stalls. goes back and forth , won't maintain a level idle. I have to press the gas pedal so it won't stall, so either im stalling at a...


Do you have a check engine light? Which engine? My 1996 Trooper with a 3.2 D.O.H.C. is awful for plugging up the E.G.R. I have cleaned it several times! Good Luck!

Mar 21, 2010 | 1999 Isuzu Rodeo

1 Answer

Engin light ON


Start with the evap valve first. However, the bad exhaust could have damaged your oxygen sensor. If you still get the trouble code on the oxygen sensor, replace it second.

Apr 29, 2009 | 1997 Ford Escort

2 Answers

My 2000 Isuzu Trooper needs a catalytic converter.


yes they have 2 cataletic convertors, one each bank
there is EGR codes, but only front O2 sensor codes and fuel trim codes no CAT codes
what were the scanner codes or flash codes i can work with both for helpful info
you can read codes by bridging pins 5 & 6 with ignition in on position engine not running


eb2c10d.jpg

Jul 16, 2008 | 2000 Isuzu Trooper

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