Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

A few MAF questions.....

Thread Tools
 
Search this Thread
 
Old Oct 18, 2003 | 04:22 AM
  #1  
TylerM's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2003
Posts: 79
Likes: 2
A few MAF questions.....

ok here goes this is my first post. i have an 1988 iroc 305tpi a buesty of a black car but n e way...it has a horrible stalling problem. u start it up and 3 secs later its dead. give it gas it was work but die when let off. stalls at stop lights and even cruising down the highway. if i let go it stalls. now i had a list of a bout 20 things it COULD be but i read on one post to disconect my maf and see if it runs. well it did. it idled fine but i didnt drive it. i dont know what codes its throwing (no scanner) and no cel. but it will idle with out my maf conected. now to get to my questions.

is it safe to drive with out my MAF conected?
does this mean my MAF is ruined? my relays?

any help would be greatly appriciated. thnx for ur time

-----Tyler-----
Reply
Old Oct 18, 2003 | 05:44 AM
  #2  
grndmasnightmar
Guest
 
Posts: n/a
well...

like you said it could be anything, to check your code jump the a and b terminals on your cpu diagnostic under the dash (on the top row last two terminals. turn the key to the run position and it your ses light will blink once pauce then twice, this will happen three times , this is code 12 , a functioning cpu, if there is any codes stored it will flash out the other codes next. , as far as the maf, some people drive with the maf disconnected but i think it makes you run lean im not sure do a search youll find info on that ..... hope this helps
goodluck
Reply
Old Oct 18, 2003 | 11:19 AM
  #3  
8Mike9's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Normally it would run richer with the MAF disconnected, but seems you've found your troublespot.

Swap the MAF burn off and MAF power relays first, bewteen themselves, if no change, then MAF is probably bad. (assuming both relays are not).

If you don't have the ability or tools (requires DMM and schematic of the relays) to test the relays, just replace them...only about 10 bucks each.

If the MAF is bad, do a seach on the "Wells SU145" MAF, should be a direct replacement at about 1/2 the cost of a new Bosch.

And Welcome to thirdgen.org
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Mark_ZZ3
TPI
15
May 24, 2018 01:02 PM
BumpaD82
Tech / General Engine
37
Feb 26, 2016 02:57 PM
racereese
Tech / General Engine
14
Oct 3, 2015 03:46 PM
Ikes 91Z
LSX and LTX Parts
0
Sep 13, 2015 09:03 AM




All times are GMT -5. The time now is 04:36 AM.