Number 2

I am going to have new relays put in this week in attempt to solve SES problem that's pulling codes 33 & 34. I've seen on the Forum and heard from others this should be an inexpensive way to rule out relays. Any estimates on what this should run so I don't get hosed ? And it seems many Forum members have had success by doing just this. But if I do not, should the next step be to replace the MAF or check the ECM ?? Thanks.

mt_789

I just put in a new MAF on my 88 coupe this weekend, but did not get the chance to put in the two new relays. Actually the AutoZone I bought the MAF from only had one relay in stock, and I think it was like $8.00. I have the car at the dealer today for a headlight motor problem, and since they were only charging like $9.00 for the part, I think I am going to have them do it for me, unless the labor rate kills me. I believe they are behind the battery, but I did not get far enough to see if you have to pull the battery ( a real pain) to change them out. If not, it is probably a quick and easy job. My MAF went out and left the car undriveable, but as soon as the new MAF was in and I reconnected the negative battery cable, I was back in business. Good Luck

Frank Zeman

Changed out both of them recently. Pretty easy job, just a little snug to get at things. Both are on the firewall right behind the battery. Relays themselves were $15 each and I had to go to two dealers as each only had one. The battery disconnection cleared the codes and have not seen an SES code since. Is there anything under a vette hood that isn't snug!!

Number 2

Thanks Frank. Which 2 relays were they ?? The MAF burnoff I assume is one. What is the other ??

CoolVette86

I agree with Mr. Zeman, the battery disconnect with clear the codes. When I did them for my brother's '87, I had to go to two dealerships to get the two relays, which for '87 'vettes, are identical. My '86 have two different relays. By the way, I did try to get them at my local Advanced Auto, but to no avail. Dealership charged me an arm and a leg! :mad Also, I removed the side panel and the battery to gain better access. It's worth the small hassle. Good luck!

Rick Williams

You can replace them yourself. I had the same codes and replaced them @ $15.00 each.I used Delco parts from a Chevy dealer.. On the relays it said "made in China" But it fixed the problem..
You don't need to remove the battery..

86VetteBill

The other one is the MAF power... This one is closer to the engine. The burn off relay comes off first!

2001 Z06

I replaced both of them on my 87 vette, not hard at all. I got both of them at Mid-America for like $17, yes for both of them. So do not get them from the dealership.

Number 2

Thank you all. I replaced the 2 relays this weekend. Parts cost $14 each....labor 15 minutes. SES light is now out (for the time being !!) and I perhaps avoided a $700 job replacing MAF and/or ECM. Thanks a bunch !!!
:flag :cheers: :D :chevy :seeya