87 trans am need help
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 86
Likes: 0
From: Monroe, MI
Car: 87 Trans Am
Engine: 305 TPI
Transmission: 700R4
87 trans am need help
heres my problem car is throwing code 33 after changeing the mass air flow sensor and the mas relay. It runs but if you push the gas down just a little it doents want to move it will rev up to just below 2000. it acts like it wants to die. If i keep the rpms below 1600 it will move but it takes forever to get up to speed. I also replaced the vacuum lines. i thought theres was nothing wrong with the wires but i think im wrong i have found 2 black wires that have been spliced together but there spliced to 2 other black wires. i just now found the blue wire from the mass air flow sensor is spliced into over by the Relay but the other wire that is spliced into it leads to another relay but i dont know what the relay is for. I can add picks if need to help verify things. Its on a 87 trans am 305 tpi the relay is on the driver side.
the first pic has the relay which im talking about its the one on the right the maf relay is laying on the wheel well because the holes for the screws r broke
When i first bought the car it ran great for like 3 days and then noticed the water pump was bad so i replaced it and when i put the Mass air flow senor back on i guess i had the wires to close to the belts and they rubbed up on it and wore right through a couple of them and the expossed wires were touching one of the brackets. Dont know if that caused the ecm to get messed up or what but any help would be much appreciated.
the first pic has the relay which im talking about its the one on the right the maf relay is laying on the wheel well because the holes for the screws r broke
When i first bought the car it ran great for like 3 days and then noticed the water pump was bad so i replaced it and when i put the Mass air flow senor back on i guess i had the wires to close to the belts and they rubbed up on it and wore right through a couple of them and the expossed wires were touching one of the brackets. Dont know if that caused the ecm to get messed up or what but any help would be much appreciated.
Last edited by dirtyd6669; Oct 28, 2009 at 09:16 PM.
Senior Member
Joined: May 2008
Posts: 833
Likes: 0
From: London, Ont, Canada
Car: 87 T-Top GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.27
Re: 87 trans am need help
You did that 1 of 3 relays is laying down on the wheel well right?
OK, so 3 relays, here we go: Listed as if you are looking right at them (TPI setup)
1) MAF Burnoff relay org.#14078907 is replaced by #10094701(closest to engine)
2) MAF Power relay #10067925 (middle)
3) Fuel Pump relay org.#14078907 is replaced by #10094701(beside driver side fender)
***All part #'s are AC Delco Parts***
OK, so 3 relays, here we go: Listed as if you are looking right at them (TPI setup)
1) MAF Burnoff relay org.#14078907 is replaced by #10094701(closest to engine)
2) MAF Power relay #10067925 (middle)
3) Fuel Pump relay org.#14078907 is replaced by #10094701(beside driver side fender)
***All part #'s are AC Delco Parts***
Senior Member
Joined: May 2008
Posts: 833
Likes: 0
From: London, Ont, Canada
Car: 87 T-Top GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.27
Re: 87 trans am need help
Just a thought, have you checked your tranny fluid???
dirtyd6669- "i guess i had the wires to close to the belts and they rubbed up on it and wore right through a couple of them and the expossed wires were touching one of the brackets. Dont know if that caused the ecm to get messed up or what."
Have you also taken a look at your fuses?
dirtyd6669- "i guess i had the wires to close to the belts and they rubbed up on it and wore right through a couple of them and the expossed wires were touching one of the brackets. Dont know if that caused the ecm to get messed up or what."
Have you also taken a look at your fuses?
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 86
Likes: 0
From: Monroe, MI
Car: 87 Trans Am
Engine: 305 TPI
Transmission: 700R4
Re: 87 trans am need help
didnt think about checking the fuses and my burn off relay and fuel pump relay i guess are the origional ones it there because this is the only number i see on them 14078907 and there pretty faded
Senior Member
Joined: May 2008
Posts: 833
Likes: 0
From: London, Ont, Canada
Car: 87 T-Top GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.27
Re: 87 trans am need help
WOW, time to replace them!!! By the way, code 33 could be caused by a bad ECM. COULD BE.... Not everytime though!
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 86
Likes: 0
From: Monroe, MI
Car: 87 Trans Am
Engine: 305 TPI
Transmission: 700R4
Re: 87 trans am need help
i just want to try and do the cheap stuff first and hope that fixes it but im hoping that its not the ecm
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Senior Member
Joined: May 2008
Posts: 833
Likes: 0
From: London, Ont, Canada
Car: 87 T-Top GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.27
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 86
Likes: 0
From: Monroe, MI
Car: 87 Trans Am
Engine: 305 TPI
Transmission: 700R4
Re: 87 trans am need help
after hooking up the other blue wire to a relay i am now blowing fuses for my ecm should i undo that wire and put it back the way it was
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 86
Likes: 0
From: Monroe, MI
Car: 87 Trans Am
Engine: 305 TPI
Transmission: 700R4
Re: 87 trans am need help
i rehooked up the wire the way the person before me had it and replaced the fuel relay and burnoff relay and now i can hear the fuel pump running all the time am i supposed to hear it and when i first got it i never really paid attention to it so if someone could help me and im still getting code 33
PLEASE HELP
PLEASE HELP
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 86
Likes: 0
From: Monroe, MI
Car: 87 Trans Am
Engine: 305 TPI
Transmission: 700R4
Re: 87 trans am need help
I bought a replacement its a BWD brand i think i bought it from autozone but havent put it in. I did put it in once and it was giving me more codes so i kinda thought maybe i shouldnt yet but i will put it in today and see what happens and let yopu know the results
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 86
Likes: 0
From: Monroe, MI
Car: 87 Trans Am
Engine: 305 TPI
Transmission: 700R4
Re: 87 trans am need help
i replaced the MAF power relay with the BWD brand and my car didnt want to run let alone start up. so i put the old one back in and it started up fine i checked the spark plug wires and i have 2 that are cracking so i taped them up for now but im still getting code 33. Im thinking about finding a new wire harness for it because i am finding more wires that have been spliced into i found another one today that leads to the starter its a orange wire that leads from the starter and when it gets to the top of the moter its spliced into with a red wire also connected to it.
any help is much appreciated
any help is much appreciated
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