1996 Toyota Camry Q&A
1996 Toyota Camry Question: Cylinder #4 Misfire
I have a check engine code that indicates a misfire in cylinder #4. I've already changed the spark plugs, wires, distributor, distributor cap, rotor, and the fuel injector #4. I've also had the pressure checked for all cylinders; all were fine. None of this has solved the problem. I noticed that every time i cleared the check engine light, I was fine for about a few days and then it would come back on minutes after i turned on the car; it has never appeared while driving. I do not know where else to look and i do not want to continue driving my car with a check engine light. Please help. - baberuth
lots of problems with carbon causing initial start up miss fires. as the engine warms up, the miss stops. you need someone to run a top engine cleaner for the valves. worst case is the head has to be removed and de carboned. Roy - mastertech6371
Is the code PO304? Does the engine sound like it has a misfire at idle, does it run rough. I have replaced fuel injectors on these, check the valve clearance (they are shim adjusted, a tight valve will cause a misfire) and check for a vacuum leak at the intake manifold gasket or a hose off the manifold near number one runner at the manifold. Another possibility is the EGR being dumped primarily into #1 cylinder if the other EGR passages are getting restricted not such a Toyota problem (common Honda problem). - patrick mannion
Check engine light. Cylinder 4 misfire. Changed spark plugs and wires. Ran fuel injection cleaner through it. Still getting check engine light with same message. What should we try next? Distributer?
Fairly new plugs and coil and wires and cap and rotor. Don't understand the code. Have a large in air intake hose for breather could it be my culprit?
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