Intermittent Code 33 on 87 Corvette
Thread Starter
Intermediate
Joined: Aug 2009
Posts: 31
Likes: 0
From: Phoenix Arizona
Intermittent Code 33 on 87 Corvette
I've been having an intermittent code 33 since last year. I recently bought the repair manual and followed the steps to find the problem but couldn't do everything it says because I don't have a scanner. It seems like the problem only exists during the summer (very hot climate, here in phoenix, AZ). Recently I have been getting a code 32 as well, but no change in performance is felt when this code appears. Also, been having trouble with cold starts. I don't know if all of these syptoms are related or if I have multiple problems, HELP!!!!!!!
Racer
Joined: Jul 2005
Posts: 265
Likes: 0
From: Alexandria Indiana
Code #32: EGR System Failure.
Code #33: Mass Air Flow Sensor High.
http://www.digitalcorvettes.com/foru...29&postcount=1
Code #33: Mass Air Flow Sensor High.
http://www.digitalcorvettes.com/foru...29&postcount=1
Thread Starter
Intermediate
Joined: Aug 2009
Posts: 31
Likes: 0
From: Phoenix Arizona
Thanks for the link, I knew what the codes were because I have the repair manual for that specific year, I just don't know if the two codes are related. Based on the manual code 32; EGR could be showing up due to code 33; MAF high voltage.
Team Owner
Joined: Jan 2003
Posts: 20,322
Likes: 248
From: Summerland B.C. Canada
What manual are you using ??
Does it look like this ??
http://members.shaw.ca/corvette86/Code%2033.pdf
http://members.shaw.ca/corvette86/Code%2032.pdf
Does it look like this ??
http://members.shaw.ca/corvette86/Code%2033.pdf
http://members.shaw.ca/corvette86/Code%2032.pdf
Thread Starter
Intermediate
Joined: Aug 2009
Posts: 31
Likes: 0
From: Phoenix Arizona
Yes, its the Y Carline manual for 87. They are almost identical, with slight differences, only in the structure or positon of information, but contain same info. Based on my understanding, according to Code 32 info, Code 32 might appear if codes 21, 22, 33, 34 are present. Which, in my case, Code 33 is present.
