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10-04-2008, 05:20 PM | #1 |
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Join Date: Sep 2000
Location: denton, tx, usa
Posts: 176
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FYI Code 44 on '89 suburban
Had a code 44 set last week, so I stopped and picked up an oxygen sensor, assuming it might be the sensor. But I had just replaced the sensor a few yrs. ago. Anyway, I was unplugging the sensor to change it out when I felt a little roughness on the wire upstream of the sensor wire connector. When I got a light to check it, sure enough about 1/2" of the insulation was gone on the wire. I theorized the missing insulation was allowing the wire to heat up and cause the resistance to change and consequently vary the voltage. So I taped up the wire where the insulation was missing and it solved the problem, no more MIL coming on. Like they say always check the simple stuff first. I will better repair the wire, now that I know that's what it was. Maybe this will help someone else sometime.
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69 SB GMC LWB Fleetside 350, 09 Pontiac Vibe 2.4 liter |
11-16-2008, 12:46 PM | #2 |
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Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,021
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Re: FYI Code 44 on '89 suburban
Good info. Thanks for sharing...
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