shua57
08-01-2014, 06:56 AM
I have a 1989 G10 350 TBI motor in my 57 for years now. Since I have installed it I have what seems like a idle issue. From my understanding the car should start, idle up then slowly idle to normal idle but I can not get the car to do that. It starts and idles at a constant idle, no idle ups for braking or shifting. I have replaced the IAC and have done test for years now to track the problem down and I'm not really sure what I am missing. I have check TPS voltage, IAC voltage, etc., and all seems within spec. One thing that I might be an issue is I have never had a breather on it. Could it be possible that I'm getting to much air leaving the breather off?
I know that TBI's don't have a MAF, they used a MAP sensor, could it possible be causing an issue since I am basically allowing no vacuum without a breather to create vacuum?
Josh
I know that TBI's don't have a MAF, they used a MAP sensor, could it possible be causing an issue since I am basically allowing no vacuum without a breather to create vacuum?
Josh