Random idle... goes from 600-800 every second

Habbibie · Sep 26, 2016

Well since this thread has been bumped I had a similar problem and when I replaced my VCT's it fixed it.

It wasn't the cheepest fix nor was I actually intending on fixing the idle jumping by replacing the VCT's but for some reason that got fixed alone with what I was trying to originally fix

Transporter · Sep 26, 2016

Now now guys, 0xowner is doing things the correct way. He searched the Forum first to see if somebody was having the same issue he was having and what solution they found BEFORE starting a new Thread. He revived an old thread to see if the OP had finally found a solution.

0xowner: most of these issues are from unaccounted for intake air or incorrect vacuum IE a leak that the computer keeps trying to compensate for because the computer has to base its monitoring and corrections on the assumption that the system is properly closed and functioning.

1955moose · Sep 26, 2016

Also an item that causes surging is a bad throttle position sensor. This usually will trip a check engine light, but not always. As stated above spray or use propane and check all intake gaskets and hoses. Also run a dtc test through your data port for any codes. One failing or failed sensor can cause havoc.

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Bedrck47 · Sep 26, 2016

Transporter said:
Now now guys, 0xowner is doing things the correct way. He searched the Forum first to see if somebody was having the same issue he was having and what solution they found BEFORE starting a new Thread. He revived an old thread to see if the OP had finally found a solution.

0xowner: most of these issues are from unaccounted for intake air or incorrect vacuum IE a leak that the computer keeps trying to compensate for because the computer has to base its monitoring and corrections on the assumption that the system is properly closed and functioning.

Your reply to oxowner may not do any good He hasn't been on the forum since Aug 8, 2016

1955moose · Sep 26, 2016

He might not be but the info might help another member with similar problems.

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Random idle... goes from 600-800 every second

Habbibie

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