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1993 Isuzu Trooper ect location

Tiny
BUZZBYDANMIT
  • MEMBER
  • 1993 ISUZU TROOPER
  • 6 CYL
  • 4WD
  • MANUAL
  • 224,000 MILES
Gas milage on my trooper went from @20 mpg to @8.I get error code 42. My mechanic told me to check the resistance on the ect sensor but I cannot locate it any ideas thenks Buzzby
Friday, September 18th, 2009 AT 10:23 AM

3 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Code 42 indicates Electronic Spark Timing (EST) not ECT. ECT is the engine coolant temperature sensor and has nothing to do with fuel. You will need to check for an open or short to ground in the EST circuit.
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Friday, September 18th, 2009 AT 10:48 AM
Tiny
COLLEGE_BOY
  • MEMBER
  • 1 POST
I am having a few problems with my trooper as well. I am just wondering what kind of diagnostics tool you are using and where you got it. From what I have read, these vehicles are not OBD2 compliant. Suggestions?

Thank you for your time.
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Monday, September 21st, 2009 AT 11:30 AM
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
The 1993 Trooper uses the OBD I system.
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Monday, September 21st, 2009 AT 12:02 PM

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