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Isuzu Trooper Check Engine Light

59 messages,  Last post on Jan 31, 2011 at 11:34 AM

You are in the Isuzu Trooper Forum.

What is this discussion about? Isuzu Trooper II, Engine, SUV

Messages Page 4 of 6

#30 of 59 Check Light On by biryani

Nov 21, 2009 (2:32 pm)

Hi,
 
I am new to this forum and found this very helpful..... I have one question though..
I have 2002 Trooper which runs perfectly fine, but from last month and a half I noticed that CHECK light is keep coming up, its right under TOD sign, its not the constant but keep coming now and then. sometime when I start engine it stay there and flashing then I turned-off and turned back on then it goes away.
 
Any idea what is it for, I will really appreciate your help.

#31 of 59 Re: Check Light On [biryani] by atfdmike

Nov 21, 2009 (7:10 pm)

Replying to: biryani (Nov 21, 2009 2:32 pm)
When the Check light comes on, there is also a code stored in the computer, which can be read by a OBDll code reader. Autozone and most part stores will read it for free. Get the name AND the code number and that will give you specific reason for light. Then you can research possible remedies. Hope this helps. One guys opinion.

#32 of 59 isuzu trooper 98 by isuzu98

Jan 15, 2010 (6:58 pm)

I have a manual 98 Trooper and for the last two months the "Check Engine" light has been coming on and it's been difficult to diagnose the problem. Whatever the code that AutoZone provided only scratched the surface. My local mechanic has replaced: mass air flow sensor, manifold air pressure sensor, throttle position sensor, idle control valve, fuel filter, and fuel injectors. All of these electronics have to do with emissions, I have been told. What a nightmare. This will be the last time I ever buy a manual 4x4 of any kind. Too many parts, and the kicker is that this was all electronics that control the moving parts, the moving parts, for the most part, are fine! Having a good mechanic who can take the time to diagnose these issues is a lifesaver. Don't let a lesser mechanic brush off these problems.

#33 of 59 Check Transmission by ftagawa

Jan 21, 2010 (10:22 pm)

i have a 2002 model isuzu trooper skyroof edition my problem is after doing the change oil the indicator for check trans is keep on flashing and the unit won't start. the engine is 4jx1 isuzu.

#34 of 59 Check Engine Check Transmisssion by wisrodeo

Jan 29, 2010 (8:32 pm)

tonight check engine/check transmission light came on while in cruise control. Got home tried to reset by disconnecting battery waiting ten minutes. This did not work infact now the shifter indicator on dash and shifter read different gears dash says 2 and floor says D cycled through and dash does not show gear even when im in drive tried to drive it and it seems to clunk when upshifting and down shifting I just bought this 02 rodeo LSE truck a week ago. Please help!

#35 of 59 Re: Check Engine Check Transmisssion [wisrodeo] by atfdmike

Jan 30, 2010 (10:39 am)

Replying to: wisrodeo (Jan 29, 2010 8:32 pm)
The trans is an electronically controlled trans so any check trans light will be accompanied by a diagnostic trouble code in memory. Since you unhooked battery youmay have erased the original code, but since you are still having problems, I think your mode switch on the trans shifter input shaft is dirty, damaged or broken. This is a common problem as it is exposed to all the dirt, dust and crud the underbody sees. The mode switch has to be installed properly and work properly or your symptoms are the usual evidence......dash reads one gear and shifter lever indicates another. This will also result in screwed up shifting when it is not working right. This is where I would first check under the circumstances you describe.
 
Check this out: http://isuzufaq.ibctech.ca/range.pdf

#36 of 59 94 trooper check engine light by denices

Feb 04, 2010 (6:51 pm)

i just bought this 94 trooper 3.2 dual overhead cam.. it has 117,000 miles one it.. anyhow my check engine light comes on when i hit highway speeds, then when i stop it comes off, take off again it comes back on.. then the next day it stays off till i hit the highway speed again.. if i just run around town at slower speeds it dont come on.. so i replaced the tps and that didnt fix it.. So i am not sure what it could be.. just strange how it comes on only at highway speed. any suggestions??? Also in the morning when i first start it, it starts right up then i smell fuel till it warms up.. once its warmed up it has a little trouble starting.

#37 of 59 Re: 94 trooper check engine light [denices] by atfdmike

Feb 06, 2010 (9:06 am)

Replying to: denices (Feb 04, 2010 6:51 pm)
There is a code stored in memory of the ECU when the CEL comes on. I am betting it is 32 based on your symptoms. That is an EGR code, and the valve needs to be checked for function, but likely the tube is carboned up in the plenum if cleaning and checking the valve does not resolve the problem. Not too bad a job with a small brass brush like you would use to clean a 22 cal barrel. I would check the EGR valve for function and if it is ok, then clean the manifold passageway. Easy to check codes. The connector is on the hump where the carpet meets the console. It has 3 wires, IIRC, and you jumper two of them and turn on ignition (don't start) and the CEL will flash the stored codes. HTH One guys opinion.

#38 of 59 Starter spins and no spark by heartlan

May 07, 2010 (9:46 am)

1994 Trooper SOHC - One day it just didn't start, no warning signs. Checking to find the problem, I found hole in the radiator and fluid very very low. Have been doing oil changes at Dodge Dealer and they never mentioned the fluid level, just topped it off. I have put an ignition module in and the trooper starts but now have a check engine light that came on, during my five mile test drive, not sure what the code is yet. Will have to go see if I can get that read free somewhere. Would the radiator have some kind of a sensor that might throw a code?

#39 of 59 Re: Starter spins and no spark [heartlan] by atfdmike

May 07, 2010 (10:35 am)

Replying to: heartlan (May 07, 2010 9:46 am)
Nah, you have an engine temp sending unit on the crossover pipe on the back of the engine that is very important to the operation of the engine, but would not cause a no start condition. IMO. You have OBD I system, so most code readers may not work, but simple to get codes. The code connector is located where the center console meets the carpet and dash on the driver side. Jumper the connector properly, three wire conncector IIRC and one wire is ground, other dtc. One is not used. turn on the igniton but don't start, and the CEL will flash the codes. Post up if you don't know them. HTH One guys opinion.

Messages Page 4 of 6

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