Brad Kimbler
December 8th, 2014, 02:56 AM
I received a 1998 corvette with not 3-4 in a 60e, I pulled the trans and rebuilt it, no issue, the customer then wanted to fix his cold start issue
I Pulled the tune(no MAF on the car) and started to look at it...
During a LOG the commanded desired airflow is at 0.00!!! and only runs when i give it throttle until 99degreesF then rpms jump up as desired airflow is now reading 2-3 grams/sec. In the tune there is 3-4 grams/sec under 100F ECT, but I cannot understand why it isnt trying to add throttle by itself...Electronic Throttle should be the "IAC" correct?
I have noticed the speed density tune was somewhat incomplete, I set the p0101, p0102, p0103 to non emmisions, but it didnt help...do i need to get a custom OS in it???Is one even availiable for a 1998 car?
thanks for any help tips or tricks.
I Pulled the tune(no MAF on the car) and started to look at it...
During a LOG the commanded desired airflow is at 0.00!!! and only runs when i give it throttle until 99degreesF then rpms jump up as desired airflow is now reading 2-3 grams/sec. In the tune there is 3-4 grams/sec under 100F ECT, but I cannot understand why it isnt trying to add throttle by itself...Electronic Throttle should be the "IAC" correct?
I have noticed the speed density tune was somewhat incomplete, I set the p0101, p0102, p0103 to non emmisions, but it didnt help...do i need to get a custom OS in it???Is one even availiable for a 1998 car?
thanks for any help tips or tricks.