LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

%#$*& CHECK ENGINE

Old Sep 22, 2003 | 03:51 PM
  #1  
96Z28Guy's Avatar
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From: Kansas City, Mo
Mother F%#$*& CHECK ENGINE

Well I went to auto zone today again so I could get the codes written down. Instead of it just throwing out 2 codes, it threw out 8!!!!!!!!

P101
P103
P0200
P0300
P0336
P0420
P1351
P1371

It doesnt run bad, everything seems fine Im so confused.

Can anyone help me out here?

Thanks,

-Ryan
Old Sep 22, 2003 | 04:00 PM
  #2  
madwolf's Avatar
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From: DeKalb, IL
That's a bit too many codes to show up at one time. Although there's certainly a possibility that they are real, it could also be a bad ground, or low system voltage or maybe a bad PCM.
Clean the ground near the PCM and then pull the PCM fuse for a minute or two and see if they go away.
Old Sep 22, 2003 | 11:51 PM
  #3  
DSIM's Avatar
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Posts: 122
From: Greenville, Tx and Austin, Tx
P101-Mass or Volume Air Flow Circuit Range/Performance Problem

P0103 -Mass or Volume Air Flow Circuit High Input

P0200- Injector Circuit Malfunction

P0300 -Random/Multiple Cylinder Misfire Detected

P0336 -Crankshaft Position Sensor A Circuit Range/Performance

P0420 -Catalyst System Efficiency Below Threshold (Bank 1)

P1351 -IC Circuit High Voltage

P1371 -DI Low Resolution Circuit


Hope this helps...
Old Sep 23, 2003 | 07:47 AM
  #4  
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Posts: 27,727
From: Little Rock, AR
If the genuises at AZ did not tell you if they were active or history codes, you could be chasing your tail. If they did not clear the codes, do so and then have it scanned again if the SES comes on.
Old Sep 23, 2003 | 11:11 AM
  #5  
ttopz28's Avatar
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From: Dallas, TX
P0420 -Catalyst System Efficiency Below Threshold (Bank 1)
What does this code typically mean?

I think my fuel-pump is going out, so would this in anyway confirm this?
Old Sep 23, 2003 | 11:21 AM
  #6  
Injuneer's Avatar
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From: Hell was full so they sent me to NJ
Originally posted by ttopz28
What does this code typically mean?

I think my fuel-pump is going out, so would this in anyway confirm this?
No. It means the after-cat O2 sensor is not seeing a reduction of oxygen that it would expect to see on the outlet of a healthy catalytic convertor. Either the cat is dieing, or the sensor is messed up.
Old Oct 8, 2003 | 06:35 PM
  #7  
ttopz28's Avatar
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From: Dallas, TX
Is there any way to test either of these (without paying someone else of course). Also, does anyone know what a new Cat. Converter or O2 sensor would run me?
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