Ocassional dip in idle - carb'ed '88

[95Compact]

I have just gotten the Festy back out on the road two days ago and now every once in a while (and only when fully warmed up) the idle will all of a sudden drop and then pick back up to normal. It may cycle a few times that way, about every 5 seconds.

It actually stalled out today in the drive-through, so I'm starting to get concerned about it.

It seems to be some sort of vacuum-controlled solenoid causing it. What does the carbed engine idle control system consist of?

Mazda just loves their solenoids...drool

Thanks!

[FestYboy]

more than likely it's your load control solenoid, but after that i would look into your fuel pump flow and pressure.

[1988redfordfestiva]

check the gas tank and pull the sending unit out u might see some build up if u never serviced the tank i just happen to do mine 2 days ago and it was prety nasty i used my shop vac after draining the gas and there was a bunk of sludge in the tank i was alittle concerned but i put 93 octane and fixed the sending unit the new one i got from kia motors in korea works excellent but the price is kind hard

[JohnGunn]

Please, do yourself a favor, before you spend any money or time on anything else and no matter when you last did it, replace your plugs with NKG V-Power ones. If that doesn't fix the problem, take them out and save them for your next tuneup. Nothing lost but a little time, but could save you hours, if not days, of time and lots of money.

John Gunn
Coronado, CA