Please help with code 45
Thread Starter
Senior Member
iTrader: (1)
Joined: Feb 2000
Posts: 720
Likes: 0
From: Shakopee, Mn
Car: 89 Iroc
Engine: 305TPI
Transmission: T5
Please help with code 45
Tonight I was driving down the road and got blinded by my SES light. I ran it and it said code 45 I have no idea what that is and since I dont know what it is I have no idea how to fix it please help out. Thanks.
------------------
Member of NCTGA
North Carolina Third Gen. Assoc.
'89 Iroc-Z
305 TPI few minor things
5 speed
Lowered 2" and yes it is a pain to drive
------------------
Member of NCTGA
North Carolina Third Gen. Assoc.
'89 Iroc-Z
305 TPI few minor things
5 speed
Lowered 2" and yes it is a pain to drive
Joined: Jul 2000
Posts: 7,386
Likes: 1
From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
Code 45: Rich Exhaust.
------------------
Looking for:
87 IROC-Z L98
84 TRANS AM H.O.
[This message has been edited by IROCZTWENTYGR8 (edited October 13, 2000).]
------------------
Looking for:
87 IROC-Z L98
84 TRANS AM H.O.
[This message has been edited by IROCZTWENTYGR8 (edited October 13, 2000).]
Thread Starter
Senior Member
iTrader: (1)
Joined: Feb 2000
Posts: 720
Likes: 0
From: Shakopee, Mn
Car: 89 Iroc
Engine: 305TPI
Transmission: T5
That would explain back fire. What would be some of the way to fix it? I just had a fuel pump put in do you think that that may be the problem?
Moderator
Joined: Jan 2000
Posts: 19,688
Likes: 319
89,
Since your TPI should have a MAF, most of the fuel curve is determined by RPM, TPS and MAF inputs, with minor offsets for temperature and other variables. It is much more common to have too little fuel delivery, so your problem is somewhat unusual. I would suggest checking fuel rail pressure and leakdown at shutoff. This may determine whether the rail pressure is correct while operating and if the injectors are sticking or leaking extra fuel when they should be closed. Just for argument's sake, you might want to test the TPS voltage through the entire range of operation to see if there are any "dead" spots in it's travel.
------------------
Later,
Vader
------------------
"Make Me Bad"
Adobe Acrobat Reader 4.0
Since your TPI should have a MAF, most of the fuel curve is determined by RPM, TPS and MAF inputs, with minor offsets for temperature and other variables. It is much more common to have too little fuel delivery, so your problem is somewhat unusual. I would suggest checking fuel rail pressure and leakdown at shutoff. This may determine whether the rail pressure is correct while operating and if the injectors are sticking or leaking extra fuel when they should be closed. Just for argument's sake, you might want to test the TPS voltage through the entire range of operation to see if there are any "dead" spots in it's travel.
------------------
Later,
Vader
------------------
"Make Me Bad"
Adobe Acrobat Reader 4.0
Thread
Thread Starter
Forum
Replies
Last Post