1998 Chevy S-10 Trouble Codes

1998 CHEVROLET S-10
182,000 MILES • 4 CYL • 2WD • MANUAL
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TACKETTM
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I cannot retrieve any codes from the computer. Engine was running fine and started to miss. I did not get a check engine light but I connected my code reader and did not get any response from the control module. The code reader works fine on my other vehicle.
Jul 29, 2009 at 7:31 AM
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JDL
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https://images.2carpros.com/forum/automotive_pictures/170934_obd11_3.jpg

With the standard obd11 datalink connector, pin 16 is battery voltage, hot all the time. Pins 4 & 5 are grounds. Are you using an obd11 code reader? If your missing voltage on pin 16, maybe we can track it down? How long since a tune-up, have you done any basic testing? Check for spark at the plugs, check fuel pressure?
Jul 29, 2009 at 10:41 AM
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TACKETTM
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I am using an obd11 code reader. There is no voltage on pin 16. Pins 4 and 5 are ground.
Jul 29, 2009 at 12:01 PM
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JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Check the cigar lighter fuse and circuit.
Jul 30, 2009 at 8:00 AM
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