Hi,
I've got an '88 Formula that occasionally stalls when appraoching a stop or I notice the rpms drop but then kick back up. I started it today right after changing the oil and the idle loped. Up and down. Sometimes it is hard to start when warm. It will take a few extra cranks and starts like it is struggling at first but then the idle becomes normal. Sometimes I think this beast is possessed!
Anyway, lots of new parts recently replaced. Fuel filter, module, plugs, cap, rotor, wires, IAC, O2 sensor, and more. Most of the time she runs pretty good but like the subject says it is intermittent. I am leaning towards some type of fuel related issue like a leaky injector. I appreciate your suggestions!

The ECM temperature sensor the one by the thermostat housing above the water pump (two wires) and the MAT sensor in the air cleaner housing will cause this problem.It still could be the IAC as that air hole in the throttle does get dirty.
Don

[This message has been edited by ka4nkf (edited 01-16-2006).]

mine does something similar now and then. uplugging and replugging the coolant temperature sender fixes it for me (temporarily). getting any check engine codes? mine was 15.

[This message has been edited by lurker (edited 01-16-2006).]

No codes or clues. Just the above mentioned. Thanks for the replies. Anybody else?