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I have a 1998 trooper, so there may be differences.
My ECL has been on for over a year - my mpg has been terrible.
Went to Autozone let them pull the code and it came up with a bad EGR, which they didn't carry.
Called around until I found a local parts store that had it in stock. Went there and asked to look at it, so I knew exactly what I was looking for. Not pix, I was holding it in my hand.
And I bought a can of carb cleaner spray.
On the 98 looking near the firewall just to the left of the engine, is the EGR. There is a wire lead to unplug, then unscrew two bolts.
Remove it, check to see if the gasket is intact and spray it liberally with the carb cleaner. ( Also check YouTube for removal and cleaning instructions.)
I scraped & cleaned it, replaced it and disconnected/reconnected my battery to make the ECL go off.
It did for about 2 days.
So I probably need to actually replace the unit - but also about $150 I don't need to spend (although that's cheaper than a $400 garage bill).
I have read mixed opinions about the EGR, which I'm sure you can find on your own and make your own decision about whether to replace it or not.
But it's honestly easier than changing a tire. Two bolts and a wire - takes about 15 minutes to change.
What else can I help you with?
Where is the ffuel pump cut-off switch located on a 1990 Isuzu Trooper?
There isn't one on that year trooper.
1990 Isuzu trooper 2.8 timing chain marks?
how do i line up timing gears on 2.8 isuzu trooper
How many gallons will a Isuzu trooper fuel tank hold?
My 1990 Isuzu Trooper II holds 20.5 US gallons.
How many gallons will Isuzu trooper fuel tank hold?
My 1990 Isuzu Trooper II holds 20.5 US gallons.
Why does the 1990 Isuzu trooper fan blade break?
it is plastic
Where is the fuel pump on a 1990 Isuzu trooper?
It is in the fuel tank.
Where is the MAF sensor located on a 1990 Isuzu Trooper 5 speed 2.8 liter v6?
The 1990 Isuzu 2.8 liter engine MAF sensor can be found on the firewall in the engine compartment. The sensor will be on the passenger side of the firewall.
What is the stock tire size on a 1990 Isuzu Trooper II?
There are several stock tire sizes for the 1990 Isuzu Trooper II. In order to determine the tire size, look at the markings on the sidewall of your current tires.
How do you fix a fuel pump on a 1990 Isuzu trooper?
you don't, buy a new one
Can you check transmission fluid on Isuzu trooper 1990?
if it is an automatic then yes, if it is a standard transmission then no
Where is the glow plug relay on 1990 Isuzu trooper?
The glow plug relay on a 1990 Isuzu Trooper is typically located in the engine compartment, near the battery or on the driver's side fender wall. It may be housed in a small plastic box or mounted directly to the fender. For precise location, consult the vehicle's service manual or look for a wiring diagram specific to that model.
1990 4-cylinder Isuzu trooper how many seats?
you have two seats in the front, and a bench seat in the back
