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post #1 of 19 (permalink) Old 05-05-2006, 07:17 PM Thread Starter
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engine codes

Well I scanned my car with the autozone obd2 scanner. Came up with 4 coeds P0420,P0638,P2101, and P6301. Can anybody help with this?

2003 Gti 1.8t: Custom Intake, B&M Short shifter,ghl 2.5in turbo back, H&R springs with Koni Sport Adjustable Struts, Upsolute chip, Forge Race diverter Valve, VDO Boost Gauge. Samco turbo inlet pipe. n75j valve, dog bone mounts, eurojet street fmic
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post #2 of 19 (permalink) Old 05-06-2006, 06:44 AM
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P0420 Catalyst System,Bank1 Efficiency Below Threshold
P0638, P2101, P6301 - doesnt exist...well i coldnt find them.


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post #3 of 19 (permalink) Old 05-06-2006, 12:55 PM
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Yeah those codes are not on the OBDII list. Write down the name of the code, i.e system to rich, interminitent

Dipkoda
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post #4 of 19 (permalink) Old 05-06-2006, 02:23 PM Thread Starter
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here are the names of the codes.
p0420 Catalyst Efficency Below Threshold (Bank1)
p2101 TAC Motor CKT Range/Perf
P0638 Throttle Actuator Range/Performance (Bank1)
p0301 Cylinder 1 Misfire Detected
appreciate the help

2003 Gti 1.8t: Custom Intake, B&M Short shifter,ghl 2.5in turbo back, H&R springs with Koni Sport Adjustable Struts, Upsolute chip, Forge Race diverter Valve, VDO Boost Gauge. Samco turbo inlet pipe. n75j valve, dog bone mounts, eurojet street fmic
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post #5 of 19 (permalink) Old 05-06-2006, 02:27 PM
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Clear then, drive around see which ones come back and post it up. None of them are to serious and some may have been a one time problem.

Dipkoda
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post #6 of 19 (permalink) Old 05-06-2006, 04:35 PM Thread Starter
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cleared the codes and realigned the throttle body started the car, check engine started blinking.
scanned
p0301 misfire cylinder 1 misfire detected
p0304 cylinder 4 misfire deteced
p0420catalyst efficency below threshold(bank1)
p0300 random multiple cylinder detected.
What I am thinking is its the MAF because it keeps throwing random codes. Then when I took the unplugged the MAF and started the car, it started normal and no codes thrown. I think the MAF might be gone. Anybody know were I can get an MAF for an AWP at a good price?

2003 Gti 1.8t: Custom Intake, B&M Short shifter,ghl 2.5in turbo back, H&R springs with Koni Sport Adjustable Struts, Upsolute chip, Forge Race diverter Valve, VDO Boost Gauge. Samco turbo inlet pipe. n75j valve, dog bone mounts, eurojet street fmic
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post #7 of 19 (permalink) Old 05-07-2006, 12:01 PM
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Try a place called WORLDIMPEX.com. There where I'm getting mine for my Jetta. Prices are pretty good. But i would even try Autozone or something like that.

01 Jetta 1.8T................. waiting for KO4
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post #8 of 19 (permalink) Old 05-07-2006, 01:45 PM
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ecstuning...$50

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post #9 of 19 (permalink) Old 05-07-2006, 02:01 PM Thread Starter
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maf=$299.95 for awp engine codes at ecstuning.

2003 Gti 1.8t: Custom Intake, B&M Short shifter,ghl 2.5in turbo back, H&R springs with Koni Sport Adjustable Struts, Upsolute chip, Forge Race diverter Valve, VDO Boost Gauge. Samco turbo inlet pipe. n75j valve, dog bone mounts, eurojet street fmic
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post #10 of 19 (permalink) Old 05-07-2006, 02:05 PM
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Dosent a clogged cat cause misfiring?

Vw to bmw back to vw

MkII GLI 16v
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post #11 of 19 (permalink) Old 05-07-2006, 05:12 PM Thread Starter
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I started the car with the maf unhooked and the car started and idled fine, with no cel. If it was a problem with the cat wouldn't it still misfire even with the maf unhooked?

2003 Gti 1.8t: Custom Intake, B&M Short shifter,ghl 2.5in turbo back, H&R springs with Koni Sport Adjustable Struts, Upsolute chip, Forge Race diverter Valve, VDO Boost Gauge. Samco turbo inlet pipe. n75j valve, dog bone mounts, eurojet street fmic
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post #12 of 19 (permalink) Old 05-07-2006, 05:52 PM
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Quote:
Originally Posted by vwturbo
maf=$299.95 for awp engine codes at ecstuning.
they have one for $55 that is "known to work" with most 1.8T's, and I have heard that it almost always does.

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post #13 of 19 (permalink) Old 05-07-2006, 06:59 PM Thread Starter
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is it possible that my overlay harness is cracked causing my car to run like this

2003 Gti 1.8t: Custom Intake, B&M Short shifter,ghl 2.5in turbo back, H&R springs with Koni Sport Adjustable Struts, Upsolute chip, Forge Race diverter Valve, VDO Boost Gauge. Samco turbo inlet pipe. n75j valve, dog bone mounts, eurojet street fmic
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post #14 of 19 (permalink) Old 05-07-2006, 07:45 PM
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You drove to autozone with a blinking CEL!!

MAF shouldnt cause the cel to blink, the misfires will do that. Coilpacks ok?

Dipkoda
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post #15 of 19 (permalink) Old 05-07-2006, 07:50 PM Thread Starter
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no i rented the scanner from autozone and scanned the codes in my driveway

I started the car with the maf unhooked and the car started and idled fine, with no cel. If it was a problem with the cat wouldn't it still misfire even with the maf unhooked?

2003 Gti 1.8t: Custom Intake, B&M Short shifter,ghl 2.5in turbo back, H&R springs with Koni Sport Adjustable Struts, Upsolute chip, Forge Race diverter Valve, VDO Boost Gauge. Samco turbo inlet pipe. n75j valve, dog bone mounts, eurojet street fmic
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