code cures

Reply Subscribe

Thread Tools

Search this Thread

Oct 21, 2004 | 04:32 PM

PsychoNumber1

Thread Starter

Race Director

Joined: Jul 2004

Posts: 11,108

Likes: 0

From: Behind The Redwood Curtain, The State of Jefferson

code cures

so a while back I posted in general about my codes (33 and 36 on my '87). I don't have a helms manual (YET!), but will eventually (need a cheap one for my budget). Anybody got some details about what I need to do? Perhaps some plagarism for me?

Oct 21, 2004 | 06:14 PM

skateparkdave

Melting Slicks

Joined: May 2004

Posts: 2,524

Likes: 10

From: Lufkin Texas

St. Jude Donor '05-'06

I think I responded last time.

33= MAF sensor
36= MAF burnoff circuit

Obviously, check your MAF, it's connections, , all it's wires, and it's screens for any obstruction. Then check it's relay, and the burnoff relay. Also check for any air and vacuum leaks in intake system.

I have a 90 with speed density (no maf) so I cant locate and identify the relays and such for you but here's a tip. While waiting on your manual to arrive, you could go to a chevy dealer service dept. and sneak passed the service writer or walk through a back service bay door and talk to a mechanic (one of the older ones is usually best) first hand and ask your needed questions. Most mechanics are down to earth and willing to give free advice.

Good luck.

Oct 21, 2004 | 07:24 PM

mikey whipreck

Melting Slicks

Joined: Jun 2004

Posts: 3,032

Likes: 4

you could pick up a haynes manual from your local parts shop for 15 bucks... its not as extensive as helms, but it does have a decent code troubleshooting section...

Oct 21, 2004 | 07:41 PM

CFI-EFI

Race Director

Joined: Sep 2000

Posts: 17,298

Likes: 32

From: The Top of Utah

Quote:

Originally Posted by PsychoNumber1

I don't have a helms manual (YET!), but will eventually (need a cheap one for my budget).

It won't take the replacement of too many unnecessary parts to pay for that book. If you don't find the proper bargain soon, go here: www.helminc.com Otherwise you may end up paying for it, without getting it.

RACE ON!!!

Oct 21, 2004 | 08:04 PM

snakeyes

Intermediate

Joined: Sep 2004

Posts: 34

Likes: 0

From: bloomfield new jersey

this is a real easy fix

Quote:

Originally Posted by PsychoNumber1

I had the same problem on my 87 I checked the maf,changed the air filter,and so on with no luck so I bought the relay for the mass air burnoff and it was fixed quick and easy

Good luck

Snakeyes

Oct 21, 2004 | 09:15 PM

jfb

Team Owner

Joined: Mar 2001

Posts: 54,124

Likes: 30

From: Cincinnati, Oh USA

The MAF relay and the burnoff relay are not expensive. I do not like installing parts only on a hunch, but in this case, I would replace both relays, I replaced my burnoff relay for this reason and it fixed that code. I opened up the relay and saw worn relay contacts.

Oct 21, 2004 | 09:51 PM

#70SM2

Racer

Joined: Jul 2004

Posts: 434

Likes: 0

From: Santa Barbara Minnesota

codes (33 and 36 on my '87).

I have had code 33 for a "Long" Time with my 86C4. What a Nightmare !
I'm the proud owner of 3 perfectly good Maf Sensors, new relays, new ecm .. I've had 4 different quallified shops check it out, I even had a GM engineer who worked on the development of this system poke around with it. No luck. Finally had a new blank chip made on a Dyno with all the dumb codes deleted. For me this was the only solution. Well worth it.