weird little issues

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03-01-2008, 02:35 PM

jmuir

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weird little issues

1. Car stumbles on cold start, almost stalling, then smoothes out after a few seconds

2. serious hesitation/stumble on medium to hard acceleration

3. No CEL

????

180 TTQC, Mods: DV, Revo, VTDA, FMIC

Anyone got any ideas?

Thx!

jkm

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03-01-2008, 02:37 PM

TTschwing

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Good chance it's one or both...>

Temp sensor
MAF

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03-01-2008, 02:44 PM

jmuir

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Re: Good chance it's one or both...>

Thx for the fast response Steve!!

I replaced the MAF about 6 months back....is there any chance it could be bad? Unplug and drive?

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03-01-2008, 02:46 PM

TTschwing

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The cold stumble then,,,....>>

would point to a temp sensor..

"theoretically" the MAF should be good.. but you never know...You can unplug and see how it runs..

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03-01-2008, 02:55 PM

jmuir

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Re: The cold stumble then,,,....>>

ok, I'll give it bang!

thanks again Steve!

jkm

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03-02-2008, 08:23 AM

jhoeppel

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agree on the temp sensor, but also try cleaning/adapting the throttle body

I had an occasional stumble after a cold start that seems to have been cured by cleaning and adapting the throttle body.

But the temp sensor is a likely culprit too. Likely enough that I keep a spare in the garage now.