500efi Rough Idle @ Warm
#11
F-2 Speedy is correct. Simply swap IAC. And see if it follows. It sounds like IAC to me. I have also pulled them and cleaned the Pintle with Electronic Spray Cleaner and had good success before eventually replacing.
#18
YMan, that IAC looks Terrible. I will assume you pulled all the plugs from both engines and looked at them also. Just to see if anything is going on. Swap coil from good engine to bad one.
i would also like to see fuel pressures at different RPMS.
i would also like to see fuel pressures at different RPMS.
Last edited by cigrocket; 06-24-2019 at 08:01 PM.
#19
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From: taxachusetts
#20
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going to pull plugs and have a look Wednesday. barring any crazy findings...I might do coil next. Probably should do fuel pressure reading. Never done it before so I’ll probably have to do some research first. Running out of things to check...injectors might need to come next.




