Vehicle Diagnostics...
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Joined: May 2012
Posts: 213
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From: PHX, AZ
Car: 1986 K5 Blazer
Engine: 1992 5.7L TPI
Transmission: 700R4
Vehicle Diagnostics...
After failing emissions, miserably, a friend lent me his Actron to use....
I failed CO, running super rich.... was 150% over the limit.
Here are some of the readings...and was hoping to get some of this translated...
The only code was: 45- rich O2
Air-Fuel ratio: 15
BLM: 108
BLM Cell: 4
O2: bounced back and forth from Lean-Rich
Feul Pump (V): 13.2
INJ PW (mS): 1.3
Intergrator: 125
Knock Ret: 0
Knock Sensor: 17
MAP (V): 1.05
MAT *F: 75
Spark Adv: 20
TPS sensor (V): .6
VATS: OK
Oil Temp: -39 ??
O2: bounced from about 200-850
O2 Crosscnts: circulated from about 50-500 over and over...
All this on a '92 TPI350 while idling at 1200rpms
Any help in identifying trouble areas would be great.
I failed CO, running super rich.... was 150% over the limit.
Here are some of the readings...and was hoping to get some of this translated...
The only code was: 45- rich O2
Air-Fuel ratio: 15
BLM: 108
BLM Cell: 4
O2: bounced back and forth from Lean-Rich
Feul Pump (V): 13.2
INJ PW (mS): 1.3
Intergrator: 125
Knock Ret: 0
Knock Sensor: 17
MAP (V): 1.05
MAT *F: 75
Spark Adv: 20
TPS sensor (V): .6
VATS: OK
Oil Temp: -39 ??
O2: bounced from about 200-850
O2 Crosscnts: circulated from about 50-500 over and over...
All this on a '92 TPI350 while idling at 1200rpms
Any help in identifying trouble areas would be great.
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Joined: Dec 2004
Posts: 16,737
Likes: 994
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Vehicle Diagnostics...
I don't see you listed the ect, Is the body of the ecm grounded ? If so this needs to be insulated from ground. Sounds like maybe a bad ecm.
Supreme Member
Joined: Feb 2008
Posts: 1,004
Likes: 1
Car: 90 IROC
Engine: 5.7 TPI
Transmission: 4L60
Axle/Gears: 3.23
Re: Vehicle Diagnostics...
The computer is sees that it is rich and is pulling as much fuel as allowed (BLM 108), plus the injector pulse width seems pretty narrow. Check your fuel pressure and check for leaky injectors.
Thread Starter
Member
iTrader: (1)
Joined: May 2012
Posts: 213
Likes: 0
From: PHX, AZ
Car: 1986 K5 Blazer
Engine: 1992 5.7L TPI
Transmission: 700R4
Re: Vehicle Diagnostics...
Im pulling the injectors, cleaning, new o-rings ect and will check fuel pressure.
Joined: Dec 2004
Posts: 16,737
Likes: 994
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
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