Adjusting Air Flow Meter

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sigkadetm
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Your car is a: 1980 Fiat spider 2000

Adjusting Air Flow Meter

Post by sigkadetm »

I want to make sure my AFM is adjusted properly. I will be using an exhaust gas analyzer and would like to know if you make the adjustments with the O2 sensor connected or disconnected. If anyone has the correct procedure it would be greatly appreciated. Thanks
DRUMMOND
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Re: Adjusting Air Flow Meter

Post by DRUMMOND »

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sigkadetm
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Re: Adjusting Air Flow Meter

Post by sigkadetm »

Thank you very much. Exactly what I was looking for.
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RRoller123
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Re: Adjusting Air Flow Meter

Post by RRoller123 »

Be very careful that the TPS (Throttle Position Switch) is fully loosened so it is in the "throttle plate closed" position. The reason is that the TPS has enough swing in its adjustment range that it can artificially hold the throttle plate open slightly, keeping the RPMs too high. This is not mentioned in any of the manual's various procedures but must be paid attention to. Adjust the TPS last.
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sigkadetm
Posts: 160
Joined: Sat Jul 31, 2010 4:59 pm
Your car is a: 1980 Fiat spider 2000

Re: Adjusting Air Flow Meter

Post by sigkadetm »

Ok so adjust everything first idle speed and the air fuel mixture with TPS fully loose then adjust the TPS last ....got it.
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