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Indication of bad afm??

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Old 10-29-07, 05:37 PM
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Indication of bad afm??
What are the indications of this??
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Old 10-29-07, 07:56 PM
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Car won't start-idles funny- won't idle-3800 rpm hesitation.

What makes you think you have a bad AFM?
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Old 10-29-07, 08:08 PM
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car has a weir surging problem but is well below where the secondarys kick in.
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Old 10-29-07, 08:40 PM
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you mean like on a cold start it kinda bucks?
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Old 10-29-07, 09:23 PM
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nah it only happens after it has warmed up to operating temp. i have a wideband and it shows that when it does this air fuel being in the 15's low 16's which is ungodly lean.
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Old 10-29-07, 09:40 PM
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the s5 na's had afm failures, early on. the updated afm's have a white dot on em.

symptom is a bog/hesitation/flat spot on tip in, or off idle
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Old 10-29-07, 10:19 PM
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Originally Posted by inflatablepets
No spark.
Your sig is ironic considering you're wrong...

Originally Posted by re-rx7
car has a weir surging problem...
WFT?

You need to explain the symptoms a lot clearer than that.
Last edited by NZConvertible; 10-29-07 at 10:36 PM.
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Old 10-29-07, 10:34 PM
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Car as iam driving usually after sitting in a drive thru or sumthin when i go to take off will actally run really lean. Tis in turn causes a surging problem like a rocking motion like the car is out of gas or sumthin. just curious of what it could be.
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Old 03-16-08, 01:32 PM
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sounds like an intake leak or vac leak to me
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