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Author
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Topic: What do they codes mean-87 fuel pump primary circuit fault and more codes
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87 coupe
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Member # 10919
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posted
 
 
These are the following codes and what they are
Code#22-manifold absolute presure (map) or baro sensor out of range.
Code#34- R- egr valve not opening properly-
Code#34- O,R,C- insufficient egr flow or evp voltage high (sonic) or pfe censor voltage high or out of specification
Code#66-R,C- vaf/mass air flow censor fault, below minimum voltage
Code87-fuel pump primary cicuit fault
Code-96-fuel pump secondary circuit fault /high speed ful pump relay open
My car use to idle real funny only thing is doing now idle stays at 900rpms and suddenly revs to 1100rpms then does that all over and over again what do some of these codes do and smells like gas but tail pipes smell pretty good enough to pass smog any one had this problem
Posts: 2016 | From: Home | Registered: May 2011
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rollin5ive0
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Member # 8592
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posted
sounds like your computer is takin a shit!! did you do anything recently to the car or jus happen all the sudden?? ![[Confused]](confused.gif)
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875.0gt
90dtlx5.0
93blkvenumos5.0COBRA#3377
96redthundr4.6l4vCOBRA
964.6l2vGT
895.0lGT
93cleancorlgreen5.0GT
93meancoralgreen5.0GT
Posts: 1830 | From: 707 vacaville ca | Registered: Aug 2008
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87 coupe
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Member # 10919
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posted
The car engine bay burnt I bough the car of another member on here I bough a 93 ecu harness of Tim mustan guy and still used the 93 ecu I tried changing it of a auto a9p Wich still works for a 5 speed I used the two relays by the cold air intake the same ones of the old harness also I just trew on a map censor of a unknow year I had In my garage and a random mass air censor Wich is trowing those two codes also map and mass air censor car runs fine but has a high idle sometimes that goes up and down every minute about maybe I put the wrong censors of different years I tried everything new spark plugs new wires new tfi madule new aicv, tps new egr valve new temp censor
Posts: 2016 | From: Home | Registered: May 2011
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87 coupe
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Member # 10919
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posted
Car was like that after new engine and new harness but like I posted i used those two relays on the apron by the cold air intake unknow year map and mass air censor u guys think that could be the problem
Posts: 2016 | From: Home | Registered: May 2011
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rollin5ive0
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Member # 8592
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posted
quote:
Originally posted by 87 coupe:
Car was like that after new engine and new harness but like I posted i used those two relays on the apron by the cold air intake unknow year map and mass air censor u guys think that could be the problem
i dont think the relays have anything to do with it. check all your vac hoses make sure they are routed right. are you sure the map and/or maf were good? was the a9p ecu from a 93 also?
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875.0gt
90dtlx5.0
93blkvenumos5.0COBRA#3377
96redthundr4.6l4vCOBRA
964.6l2vGT
895.0lGT
93cleancorlgreen5.0GT
93meancoralgreen5.0GT
Posts: 1830 | From: 707 vacaville ca | Registered: Aug 2008
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87 coupe
¯
Member # 10919
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posted
The a9p was of a 92 and I just switched the Wot relay with the fuel pump relay and car started shaking and turned off so I'm
Assuming bad relays and Maff idk I dnt know the year of the maff
Posts: 2016 | From: Home | Registered: May 2011
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rollin5ive0
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Member # 8592
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posted
i know harnesses can be finikey, if its a 93 harness id try and find a 93 ecu, i dont know for sure though if 93 ecu had any pin differences than 92, hopefully someone will speak up if they know. id def at least pull that maf out and make sure its clean, then clean it anyway (spray down with maf specific cleaner then !!very gently!! soak a q-tip head in cleaner and wipe the thin wires that read the air in the maf) and check to make sure everything is nice n sealed up on the intake elbow incase its pullin extra air after the maf. clear your codes and if it pulls the maf code again switch the computer ontop of the maf, u could prob snatch one out of any pick n pull just make sure u have the security torx bits (torx bit with hole in middle, sorry not sure of bit size) if u do go u might as well snatch up a coupla relays and map sensor! ![[patriot]](graemlins/patriot.gif)
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875.0gt
90dtlx5.0
93blkvenumos5.0COBRA#3377
96redthundr4.6l4vCOBRA
964.6l2vGT
895.0lGT
93cleancorlgreen5.0GT
93meancoralgreen5.0GT
Posts: 1830 | From: 707 vacaville ca | Registered: Aug 2008
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