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Old 07-07-2005, 07:14 PM   #1
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Default P1640 QDM1 HELP

This is the code i just got, its a check engine light but everything is running good, anybody know what the code is P1640 QDM1
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Old 07-07-2005, 10:08 PM   #2
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Old 07-07-2005, 11:28 PM   #3
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yes...it'*

Boost Soleniod
Evap Purge Valve Soleniod (charcoal canister connection)
or TCC soleniod

I'm trying to figure mine out as well...everything seems great.but it kicks a code nearly every time I drive it.
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Old 07-08-2005, 07:50 AM   #4
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Quote:
Originally Posted by BillBost37
yes...it'*

Boost Soleniod
Evap Purge Valve Soleniod (charcoal canister connection)
or TCC soleniod

I'm trying to figure mine out as well...everything seems great.but it kicks a code nearly every time I drive it.
does the code go away after a certain amount of time???
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Old 07-08-2005, 08:21 AM   #5
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Quote:
Originally Posted by Kennginn
Quote:
Originally Posted by BillBost37
yes...it'*

Boost Soleniod
Evap Purge Valve Soleniod (charcoal canister connection)
or TCC soleniod

I'm trying to figure mine out as well...everything seems great.but it kicks a code nearly every time I drive it.
does the code go away after a certain amount of time???
Each time I start the car it'* like the movie ground hog day. No lights on everything is great in the world. Drive down the road, if it'* wet TC works great, if dry...TC light is probably coming on. Then the check engine light is gonna come on and it'* a waiting game. Usually pops on when I get off the gas. Which made me think evap purge...but I replaced it w/one from a junkyard and no difference.

Need to pull out the book and do real troubleshooting. Just tough on an intermittant problem. I am almost thinking TCC but it is working fine. Each time you tap the brake after it'* engaged it disengages.
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