SPONSORED LINKS

1990 Pontiac Grand Am OBD code 66 and 62

Tiny
GIZZARD111
  • MEMBER
  • 1990 PONTIAC GRAND AM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 181,000 MILES
The A/C on this car has been completly removed and all thats left is electrical connections and the ends of the a/c lines coming out of firewall. My question is I'm getting obd code 66 when I pull the codes and I dont ever have the a/c switch on inside the car, and I am wandering if I can bypass the electrical conector for the a/c pressure switch or if there's any other way to get rid of theses code. I am also getting code 62 and I am thinking a transmission oil and filter change might fix this? Car runs fine, Have reset the codes and it will go for a couple of weeks before the check engine light and codes comes back.
SPONSORED LINKS
Saturday, May 1st, 2010 AT 11:42 PM

3 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Try pulling fuse to AC system.
Was this
answer
helpful?
Yes
No
Sunday, May 2nd, 2010 AT 8:12 AM
Tiny
GIZZARD111
  • MEMBER
  • 2 POSTS
Unfortunately I can't pull the fuse as that also runs heater fan
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, May 2nd, 2010 AT 6:51 PM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Then it may be easier to run heater fan on seperate circuit, with factory switch or aftermarket one.
Was this
answer
helpful?
Yes
No
Monday, May 3rd, 2010 AT 8:23 AM

Please login or register to post a reply.

Related OBD1 Code 66 Content

Engine Code 405p

Engine Code 405p
Asked by Anonymous ·
1 ANSWER
2001
PONTIAC GRAND AM

Sponsored links