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SPI Performance (2000-2004) The place to chat about any 2.0L Split Port Injection engine performance, tuning and exhaust related upgrades.

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Old 07-06-2012, 08:56 PM   #1
_AdriaN_
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Join Date: May 2009
Fan#: 64817
Location: Erwin, TN
What I Drive: 00 Focus SE

Posts: 19
FF Reputation: 1 _AdriaN_ Good Standing Member
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At a loss...

I'm at wits end trying to figure out what is the matter with my Foci. Lately it has been running VERY rough at lower speeds.

It's a 2000 SE w/ 2.0 SPI AUTO.

Symptoms

It spits and sputters then it will "catch" and take off. When this happens you can smell a bit of gas in the cabin. Once it takes off, the miss isn't there (much). You can cruise along at 80-90 MPH no problems. The issue is at lower speeds no matter the engine temperature.

Stuff recently done...
  1. Hollowed out CAT... Was glowing cherry red EDIT: Cannot afford a new one right now.
  2. New plugs
  3. New wires
  4. New fuel filter
  5. Used ignition coil

Side notes

OBD codes P0102 (MAF circuit low) and P0302 (Cylinder 2 Misfire) *On both coils
Oil on Cylinder 2 plug, rest look brand new
I've checked for vacuum leaks, can't find any
I've checked the wiring to the coil
Spark tested cylinder 2 and it has good spark

Have not compression tested but I'm not sure if it's needed??? It also seems unplugging the MAF makes it run a little different and sometimes kills the engine.

Also, I've pulled power to each injector as its running and 1,3,4 kill the engine however, 2 doesn't.

Any ideas?


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