325iC is mad- CEL 1263?

[katiecakee]

The Jalapeño (a Laguna Green 1992 325iC) is not feeling spicy lately. The Peño drove happily around until I replaced the o-ring on the FPR, because I only ordered 12 the first time. That's when the shenanigans started... It will intermittently bog/buck/limp, acting like its not getting enough fuel, I shut it off and turn it back on. Car is fine and acts like nothing ever happened. I have recently replaced the main and fuel pump relays, CPS and both coolant temp sensors. I don't want to throw parts at it but it needed those. Maybe its as simple as the store sent me the wrong sized o-ring for the FPR? but then my problem would be constant instead of intermittent, idk?

Peño throws a 1263- Evap purge valve code. What could cause this?! I have searched but there isn't much info on this valve or how to test it. I tried unplugging it and nothing changed.

When you unplug the AFM, car wants to shut off. I assume it works.
Tried brand new ignition wires off a friends car, no change
Cleaned up the distributor and rotor, no change
Tried a good 153 ECU for a few days, no change
I always run 89 non-ethanol gas or 93
this evening I will rent a fuel pressure gauge from advance or something

Someone help a girl out? What should I test next to fix the intermittent bog?

[vpilarrt]

Try removing the rubber line from the throttle body to the purge valve at the purge valve and plug it. That change anything?

[katiecakee]

So vpilarrt I couldn't even get a chance to try that because now it won't idle at all unless I keep the revs above 2k. At least now the problem seems constant so I'll dig out the muitimeter and figure out some things.

[vpilarrt]

Could be getting a vacuum leak through the purge hose or valve.

[katiecakee]

So, the ignition coil reads 0.01 ohms between + and - (outer terminals) and 5.63 between middle and 5.63 between middle and + or -, on the 20k scale. I'm not that great with a multimeter but looks to me like its about kicked the bucket. Time to get a new one! I'll have to address the purge valve fault code once I get a new coil, since it wont run. Thank you :)!

[vpilarrt]

I have a couple OEM Bosch coils if you're interested - $25 shipped.

[katiecakee]

thanks! but I'd rather just order a brand spankin new one to be safe

[vpilarrt]

They're like $80 + shipping from Pelican, etc. You can get an MSD Blaster 2 at Advance for like $50 and you don't have to wait for shipment. Have one on my track car, does fine.