ferrari 328 bad running - Ferrari Life
 
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post #1 of 2 Old 03-29-2019, 07:14 AM Thread Starter
 
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ferrari 328 bad running

Hi guys, i have a 1989 328 gts, it has a cold running issue.
It starts up first time, but then runs like a bag of nails.
the minute you take the rpm past 3000 rpm it runs fine.
When it reaches operating temperature its perfect.
I had it on a gas bench, when it is cold the co% is 0.1 to 0.2, when it is hot it is 1.75

everything seems to lead to the warm up regulator ?
does anyone have any ideas

thanks guys
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post #2 of 2 Old 03-31-2019, 12:46 AM
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What is the cold control pressure? That,your symptom and ultra-lean CO read will confirm your suspicions.

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