Ferrari Forum - View Single Post - Advanced Cold Start and Hot Start Problems HELP

03-07-2004, 07:32 AM

Thanks again for the help guys.

David: The CO reading was taken at operating temp. The manual states that the CO setting should be 1.0 with an error of +/- 0.2. It also mentions the HC level should be around 100, but this is for a car with a CAT. My car has a hollow CAT, so should I be concern about the HC level in terms of performance? If I were to adjust the CO level so that the HC level was low, I would have a CO setting of about 3.5. This is where the setting was previously and was probably at that setting for emissions. At this point, I do not care about emissions. At the current setting of about 1.3 for the CO level, the car did not exhibit a hot start problem. Of course the true test will be on a 90 degree day when I am not at the mechanic checking for a problem.

As to the cold start issue, my problem appears to be a missing cold start air valve. Does anyone have any more info on this item? I am particular interested in the location of this part.

Thanks.

03-07-2004, 07:32 AM	#5 (permalink)
Ken Ross Posts: n/a	Thanks again for the help guys Thanks again for the help guys. David: The CO reading was taken at operating temp. The manual states that the CO setting should be 1.0 with an error of +/- 0.2. It also mentions the HC level should be around 100, but this is for a car with a CAT. My car has a hollow CAT, so should I be concern about the HC level in terms of performance? If I were to adjust the CO level so that the HC level was low, I would have a CO setting of about 3.5. This is where the setting was previously and was probably at that setting for emissions. At this point, I do not care about emissions. At the current setting of about 1.3 for the CO level, the car did not exhibit a hot start problem. Of course the true test will be on a 90 degree day when I am not at the mechanic checking for a problem. As to the cold start issue, my problem appears to be a missing cold start air valve. Does anyone have any more info on this item? I am particular interested in the location of this part. Thanks.