Disconnecting Battery

cthog
0

Asked by cthog Apr 01, 2013 at 02:50 PM about the 1994 Oldsmobile Cutlass Supreme 2 Dr STD Convertible

Question type: Maintenance & Repair

I have a 1994 Cutlass Supreme Convertible, 3.4 that we keep at our vacation home.  I disconnect the battery each time we leave for extended periods.  Would this cause the Check Engine Soon light to come on?  Am I harming the computer in any way?

2 Answers

tennisshoes
18,455

I don't believe that you are harming the computer doing that due to the length of time it is disconnected. As far as the check engine light it may indeed have a problem, mass air flow sensor dirty, O2 bad, TPS out of specs, but everytime you disconnect the power of an extended period the computer has to relearn what car it is in and this can take up to 40 minutes to so. Run it for a while then have the codes checked and then come back with them and we will go from there.

2 out of 2 people think this is helpful.
Js08016
15,985

No harm is being done to the ECM (computer). But since your car is OBD I, each time you disconnect the battery you're clearing the trouble code(s). My '93 Chevy Caprice used to do the same thing sometimes when I'd not use it for extended periods. Sometimes it would sit for 4 to 6 months. It would set an oxygen sensor code that would go away on its own after a day or two. Probably a speck of dirt or corrosion from sitting is getting on one of the sensors & causing the problem. See if it goes away on its own after a few days of normal driving. If so, I wouldn't worry about it. If not then, as others have said publish the code(s) here & we can help. HTH. -Jim

2 out of 2 people think this is helpful.
You think this is helpful.

Your Answer

Related Questions

Search Oldsmobile Cutlass Supreme Questions

Oldsmobile Cutlass Supreme Experts

#1 munron
munron
Reputation 300
#2 chassy
chassy
Reputation 290
#3 dandyoun
dandyoun
Reputation 160
View All

Related Models For Sale

Used Chevrolet Monte Carlo"
86 Great Deals out of 2,716 listings starting at $988
Used Chevrolet Impala"
1,998 Great Deals out of 59,307 listings starting at $1,250
Used Buick Regal"
239 Great Deals out of 10,950 listings starting at $1,995
Used Chevrolet Caprice"
212 listings starting at $2,900
Used Chevrolet Corvette"
338 Great Deals out of 9,774 listings starting at $3,990
Used Pontiac Firebird"
23 Great Deals out of 843 listings starting at $2,650
Used Chevrolet Camaro"
625 Great Deals out of 33,250 listings starting at $1,200
Used Buick Park Avenue"
18 Great Deals out of 878 listings starting at $1,989
Used Ford Mustang"
807 Great Deals out of 29,278 listings starting at $1,500