318ti.org forum - View Single Post

m_souders · 01-10-2011, 10:36 PM

An update:

I pulled the fuel injectors on Saturday, and I replaced them with rebuilt ones from GB Remanufacturing (through Pelican Parts). The old injectors were dirty! Unfortunately, it starts rich and lumpy for the first minute, and then it idles and runs fine.

So I've replaced the plugs, ignition coil, injectors, mass air sensor, air temp sensor (in the air box), and the pre-cat O2 sensor. Intake boots and vacuum lines all look good. No codes, except for the occasional random misfire.

It's certainly an issue with fuel delivery, but I'm running out of things that could possibly be broken, and funds to replace them. Any ideas? What about the fuel pressure regulator?

01-10-2011, 10:36 PM	#9
m_souders Junior Member Join Date: May 2009 Location: New Jersey, USA Posts: 16 iTrader: (0) Photo Gallery	An update: I pulled the fuel injectors on Saturday, and I replaced them with rebuilt ones from GB Remanufacturing (through Pelican Parts). The old injectors were dirty! Unfortunately, it starts rich and lumpy for the first minute, and then it idles and runs fine. So I've replaced the plugs, ignition coil, injectors, mass air sensor, air temp sensor (in the air box), and the pre-cat O2 sensor. Intake boots and vacuum lines all look good. No codes, except for the occasional random misfire. It's certainly an issue with fuel delivery, but I'm running out of things that could possibly be broken, and funds to replace them. Any ideas? What about the fuel pressure regulator? Last edited by m_souders; 01-12-2011 at 10:44 PM. Reason: Air temp sensor, not coolant temp sensor.