Help with rough up/down idle
#1
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Help with rough up/down idle
Looking for some ideas to check so throw at me.
We have a kseries turbo car that idles up and down on startup and fuel pressure goes up and down as well. Iacv blocked off and shut off on kpro. Checked for vac leaks over and over and there is nothing. Anyone have any pointers on what to check
Also last week we fired the car and it idle the same. We had a battery charger hooked up and for ***** and giggles turned the charger to 16v start and the idle smoothed right out...
Any suggestions?
We have a kseries turbo car that idles up and down on startup and fuel pressure goes up and down as well. Iacv blocked off and shut off on kpro. Checked for vac leaks over and over and there is nothing. Anyone have any pointers on what to check
Also last week we fired the car and it idle the same. We had a battery charger hooked up and for ***** and giggles turned the charger to 16v start and the idle smoothed right out...
Any suggestions?
#2
Honda-Tech Member
Re: Help with rough up/down idle
have you tried the relearning process for k series throttle bodies. friend of mine had to do this when he got his zdx throttle body
#3
Honda-Tech Member
Re: Help with rough up/down idle
Looking for some ideas to check so throw at me.
We have a kseries turbo car that idles up and down on startup and fuel pressure goes up and down as well. Iacv blocked off and shut off on kpro. Checked for vac leaks over and over and there is nothing. Anyone have any pointers on what to check
Also last week we fired the car and it idle the same. We had a battery charger hooked up and for ***** and giggles turned the charger to 16v start and the idle smoothed right out...
Any suggestions?
We have a kseries turbo car that idles up and down on startup and fuel pressure goes up and down as well. Iacv blocked off and shut off on kpro. Checked for vac leaks over and over and there is nothing. Anyone have any pointers on what to check
Also last week we fired the car and it idle the same. We had a battery charger hooked up and for ***** and giggles turned the charger to 16v start and the idle smoothed right out...
Any suggestions?
What fuel? What is your target idle speed? What AFR's does it bounce around? What injectors?
If it's something with 2,000cc injectors and a high base pressure, you may have to idle it a bit rich to smooth out. I have had a handful of cars with 2,000+cc injectors need to idle as rich as 12:1 to smooth out.
That would be a procedure for the electronic servo throttle bodies, not something like what the OP has.
#5
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Re: Help with rough up/down idle
C16 id2000 no iacv it bounces around everywhere on the afr and fuel pressure drops and comes back up. I'll try to richen up at idle and see if that helps. Thanks
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