Mechanics

CHECK ENGINE LIGHT ON CODES,34,36,58,66

1992 Buick Lesabre

Engine problem
1992 Buick Lesabre 6 cyl Front Wheel Drive Automatic 140000 miles

Hi bob and ken my lesabre recently was stalling and backfiring and finally would start and stall and not stay running. The mass air sensor was replaced and the engine ran great for two days. Now the check engine light is on, codes 34, 36, 58 and 66 are present. The buick sometimes stalls when coming to a stop and bucks and hesitates sometimes could the new sensor be bad. Thank you for any help. Andrew
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Dreslik
January 31, 2008.




34=Maf OR MAP if MAP is bad you will have the performannce issues.
36= Transmission shift solinoid, or improper timing signal
58=Anti-theft system or tranny temp too high
A/C pressure sensor circuit open or shorted, or cruise control.
Start the car and apply vacuum to the maf, see if you get different redings for output.
I would start at MAP and clear the codes, then see if any reset.

Merlin2021
Jan 31, 2008.


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