More help please.

140

Asked by Mar 09, 2011 at 09:28 PM about the 2003 Ford Focus SE Wagon

Question type: Maintenance & Repair

I put a new alternator in the car and the car is running now, however I am still having problems.  Even before I put the new alternator in the car was bucking a little when I tried to accelerate or was going up a hill.  Now, however, I am get an engine light.  Every time I have the codes checked it comes up the same two codes. The car is misfiring in cylinder 4.

I have put Lucas injector cleaner in my tank and have changed spark plugs and ignition wires.   I used auto-light double platinum plugs.  And I'm still getting the same codes.  What should I be looking for?  Is it the injector or is there other possible causes?  What are they and what do I do to fix the issues

Sincerealy
MacMorrigan

2 Answers

have a cylender compression test done,may be a bad cylender.

6,045

the fuel injection system is faulty.

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