95 Camry Intermittent Stall
Hey guys. New to yotas, but I've been working on GM's for 10+ years so I am mechanically inclined. I digress though
140k 5sf3 (4 cylinder 2200) 95 Camry. Recently stalls coming to a stop, doesn't need to have been at highway speeds will also do it just around town. Previously, the engine needed to be at operating temp and have been driving around for atleast an hour to induce it. Sometimes it wouldn't do it at all.
Now it happens within the first five minutes of starting it, pretty regularily though not all the time. It will restart with some difficulty, sounds like it misses a bit as its cranking but always starts within 10 seconds or so. Any other times and it will start with ease.
What I've done: Checked TPS, DVM had smooth movement at all positions, MAP is okay, removed and cleaned EGR valve-it sounds like it is moving freely and does function. Vehicle did pass an e-test last december.
What are the common faults on these cars? The FSM had a test for the IAC, it involved grounding a pin at the diagnostic connector under the hood and looking for engine RPM to raise to 1200-and it did. A/C works and the IAC seems to raise RPM. I haven't cleaned it though..
One more thing, sometimes out of the blue I've I'm idling with the A/C on, they'll be a visible *blip* in idle. It will drop from 900ish to 750, then come back up. This isn't the A/C clutch engaging and disengaging..
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