Shes still misfiring - Toyota Nation Forum : Toyota Car and Truck Forums

CTG · 07-17-2009, 01:28 PM

Darnit...
So after replacing the ECT and the rad that blew shortly thereafter, I drove it over to a friends to start work on my brother-in-laws 93 Camry. Halfway there it started to stumble slightly on throttle application. As I went, it got worse. Maybe a mile from his house, it turned into a full-blown misfire. It'd do it idling as well. As well as an added spitting misfire like I always see on older cars trying to idle. You know, the spitting out the exhaust. Let it cool off. Started it back up after 4 hours, and it started doing it right away. Didn't even wait to get warm. I limped it home and haven't touched it since.
A week before I replaced the ECT I ohmed out the coil, pickup coil, wire leads, inspected my DEnso Iridium plugs, checked my cap and rotor, had my ignitor tested.. Everything checked out perfectly.

What the heck am I looking at now?

Maybe she's getting jealous I've been driving the 1200 ft/lb torque 99.5 F-250 Powerstroke.... If she doesn't stop breaking, she'll have same said Powerstroke rolling over her a few times...

CTG · 07-19-2009, 01:27 PM

Bump...

PortugalFocus · 07-19-2009, 03:20 PM

Have you checked a hung open injector? Bad MAF I think is a common failure on theses care with the 4cyl. What CEL codes do you have?

CTG · 07-19-2009, 03:26 PM

95 so its a MAP car.
OBD1 also.
No codes.

They are all clicking quite happily last I checked. I'll go look again though. (busts out the mighty screw-driver-ma-stethoscope)

CTG · 07-19-2009, 04:54 PM

Hmm...
All 4 clicking happily. 2 were cocked sideways. Wetting the ceiling and floor of the port can't be the best heh... Straightened them out.
I unplugged one at a time. #1 was the culprit. But it wasn't fuel. So I yanked the wire. I could get a good solid inch long spark to jump across the wire end to the valve cover, so it wasn't the wire or the cap. So I busted out the plug. It was covered in a yummy goo. Seems like when the radiator blew, some of the coolant on top of the valve cover seeped down #1 and evaporated into a goopy mess. I cleaned it up, ran a rag up and down the tube, then started it with the plug out to blast any crap out. New anti-zeize, new boot protectant, and positioning the damned wire inside the end-piece (they like to slide in and out so getting it to clip can be fun) and she purrs like a kitten. Well, a belchy kitten as the flex-coupling is trashed... But she purrs anyway.

God willing it'll stay purring. I'll be thrashing it again here soon to see if anything else wants to surface.