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I swear i searched first

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Old Sep 10, 2014 | 07:59 PM
  #1  
foxnotgrey's Avatar
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Joined: Sep 2014
Posts: 20
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From: ct
Car: 88 Iroc Z
Engine: 350TPI
Transmission: 5spd manual
I swear i searched first

I know there is a lot of information in this forum about error codes and what to do, but i couldnt find enough to actually understand what i need to look for

i checked the codes using the tried and true paperclip and got 3 codes
33 MAF sensor signal low, i saw someone mention this and say it doesnt always need to be replaced, but i dont understand how exactly to narrow down the problem
36 MAF burn off, i have a diagnostic for the code i found here but no actual idea where i need to check with the voltimeter to see whats burned out

54 low voltage at fuel pump, the fuel pump was just replaced so what could cause low voltage here?

so i know you all hate hearing it over and over again, but i need to clear the codes in order? and how should i figure out how to do just that?
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Old Sep 10, 2014 | 08:45 PM
  #2  
8Mike9's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Re: I swear i searched first

Rerun the search in the TPI forum....and look waaaaaaaay back...mid 200o's and before.

Don't get discouraged by "recent info" as many are throwing darts at problem, and hoping it sticks.

Would also suggest going into advanced search, and put in user name Vader, man, he's posted some great stuff on t/sing the TPI over the years.
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Old Sep 10, 2014 | 10:03 PM
  #3  
G-Performance's Avatar
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Joined: May 2009
Posts: 16
Likes: 0
From: Des Moines, IA
Car: 1992 Z28 25th Anniversary
Engine: 350
Transmission: Automatic
Axle/Gears: Stock
Re: I swear i searched first

Check the fuel pump relay and fuse. Maf gets its power from fuel pump relay I believe.
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Old Sep 10, 2014 | 10:05 PM
  #4  
foxnotgrey's Avatar
Thread Starter
Junior Member
 
Joined: Sep 2014
Posts: 20
Likes: 0
From: ct
Car: 88 Iroc Z
Engine: 350TPI
Transmission: 5spd manual
Re: I swear i searched first

the fuel pump relay is up by the firewall on the driver side?
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Old Sep 10, 2014 | 10:07 PM
  #5  
G-Performance's Avatar
Junior Member
 
Joined: May 2009
Posts: 16
Likes: 0
From: Des Moines, IA
Car: 1992 Z28 25th Anniversary
Engine: 350
Transmission: Automatic
Axle/Gears: Stock
Re: I swear i searched first

Yes. And the fuse is under the dash
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Old Sep 10, 2014 | 11:19 PM
  #6  
8Mike9's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Re: I swear i searched first

FP fuse should be up front by your battery, inside the valence.
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