If the ECU is requesting 1k idle rpm, it's not a vacuum leak.Originally Posted by maronielb
If the ECU is requesting 1k idle rpm, it's not a vacuum leak.
No need to re-invent the wheel. But we can make it better
Don’t think base idle has ever been messed with because the plug is still there,
Coolant temp is reading correctly based on the scanner. Ac is off, transmission is a manual for that won’t affect it, and what’s cranking idle air? Is it possible that the base idle needs to be reset? I don’t see how it would get out of adjustment unless someone messed with the screw?
Do you have any trouble codes?
No need to re-invent the wheel. But we can make it better
Ac doesn’t work and it’s a manual trans
None
If it was base adjustment the requested idle would be low and it wouldn't be able to get it that low. I don't know the BCC codes off the top of my head, is that a manual calibration, or a swapped truck?
No need to re-invent the wheel. But we can make it better
Exactly what I’m thinking!
What should the throttle percentage be at idle? And i just put a brand new battery in it the other day so battery voltage shouldn’t be and issue anymore but when i took those pics it did have a weak battery
Factory 5.7l manual bcc code is AZDR i opened the computer to make sure it has the correct chip in it and it does
If I remember correctly when data logging my 94, TPS read 0% at idle. Are you able to look at the idle flag? Should read true or false. Maybe your TPS is out of adjustment?
No need to re-invent the wheel. But we can make it better
My scanner does not show idle flag, and how would
I get the throttle to read 0% at idle? The tps is currently adjusted to .59v at idle with a 53% throttle
53% throttle at idle? Did I read that correctly?
I would unplug the TPS while idling and see if it drops rpm, could also look at scanner and see if requested rpm goes down. There is no possible way it should be seeing 53% at idle. If it was 3% I would think maybe it's saying base idle is set at 3%, but 53% is halfway to the floor. Have you checked for a smooth voltage sweep on the TPS?
No need to re-invent the wheel. But we can make it better
TPS seems to have a smooth voltage sweep but I’ll try unplugging it and seeing what happens, the thing that confuses me the no matter what i do the idle requirement shows 1000 on the scanner and my truck idles at exactly 1000
Kinda has me stumped a little too. Does vehicle speed show correct in scanner also?
If you eliminate enough stuff you should eventually find it, sometimes it's hard to know where to go next though lol.
No need to re-invent the wheel. But we can make it better
I haven’t drivin it with the scanner hooked up to check vehicle speed, but yeah it’s driving me
Crazy, I’m gonna put a new tps sensor on it and see what happens
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