codes shown 45, 51 ,42 whats the probeem starting

5

Asked by Apr 28, 2013 at 02:57 PM about the Buick Grand National

Question type: Maintenance & Repair

i changed coil & module and the crank sensor still no spark

3 Answers

code 42 is "intermittent code" (for the ECU presumably)

45 is Oxygen sensor (rich exhaust) 51 (what I could find PROM error [programmable read-only memory]

I'd look at battery and chassis ground as the cause of many on-board computer problems, also check the age of the battery seven years old is TOO old~

Your Answer

Grand National

Looking for a Used Grand National in your area?

CarGurus has 1 nationwide Grand National listings and the tools to find you a great deal.

ZIP:

Buick Grand National Experts

  • #1
    Joey Warren
    Reputation
    140
  • #2
    kenet12
    Reputation
    130
  • #3
    spideybee
    Reputation
    100
View All

Related Models For Sale

Used Buick Regal
144 Great Deals out of 7,479 listings starting at $3,995
Used Ford Mustang
603 Great Deals out of 39,738 listings starting at $1,988
Used Chevrolet Camaro
457 Great Deals out of 31,823 listings starting at $1,450
Used Chevrolet Monte Carlo
9 Great Deals out of 1,241 listings starting at $999
Used Chevrolet Impala
581 Great Deals out of 34,544 listings starting at $900
Used Chevrolet Corvette
174 Great Deals out of 17,468 listings starting at $3,000
Used Pontiac Firebird
8 Great Deals out of 764 listings starting at $2,995
Used Dodge Charger
442 Great Deals out of 33,929 listings starting at $1,999
Used Pontiac GTO
4 Great Deals out of 457 listings starting at $4,995
Used Dodge Challenger
249 Great Deals out of 25,326 listings starting at $7,750
Used Ford Mustang SVT Cobra
6 Great Deals out of 314 listings starting at $4,795
Used Chevrolet Silverado 1500
2,715 Great Deals out of 175,181 listings starting at $955

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.