Question about 1994 Toyota Camry
The code P0300 may mean that one or more of the following has occurred:
Faulty spark plugs or wires
Faulty coil (pack)---->(Likely culprit)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages--->(Likely culprit)
Faulty camshaft position sensor
Defective computer---->(Worst case scenario)
With that said; If there are symptoms such as the engine is stumbling or hesitating; Check all the wiring and connectors that lead to the cylinders. Depending on how long the ignition components have been in the car, it may be necessary to replace them at this point. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs-COP-). In some cases, the catalytic converter will have collapsed(comb deterioration). If you smell rotten eggs in the exhaust, your catalytic converter should be replaced. You may have faulty fuel injectors, as well.
Random misfires that tend to jump around from one cylinder to another will usually post a P0301-6 code and also will set a P0300 code, as well. The usual culprit is often a lean fuel condition, which may be due to a vacuum leak in the intake manifold or un-metered air getting past the airflow sensor, or an EGR valve that is stuck open. check these areas first.
Posted on Jul 16, 2010
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Jan 03, 2017 | 1990 Toyota Camry
Jun 17, 2015 | 1998 Toyota Camry
Apr 20, 2014 | 1996 Toyota Camry
Jan 15, 2012 | 1993 Toyota Camry V6
Feb 12, 2011 | 1993 Toyota Camry V6
Aug 05, 2017 | 1993 Toyota Camry V6
Oct 23, 2010 | 1994 Toyota Camry
Mar 27, 2010 | 1994 Toyota Camry
Nov 03, 2009 | 1994 Toyota Camry
138 people viewed this question
Usually answered in minutes!