P0303 error on 2000 camry 4-cyl

[JerryGiese]

Hey guys. All of the sudden today, my engine started running rough like it is missing and the check engine light came on. I took it to autozone and got a P0303 error (misfire on cylinder 3). I replaced the spark plug on 3 as well as the ignition coil. I check the compression and got 165 psi. I swapped fuel injectors with cylinder 2. But I'm still getting the P0303 (misfire on cylinder 3) error. Any ideas?

[AliRazoR]

i am not sure but i think when you solve the problem, you have to reset the ECU

[ls2ws6]

bump, I have the same problem with my 2000 camry 2.2 , PO303.

New plugs, fuel injectors were removed and tested good, I bought plug wires and havent changed them yet

[fenixus]

check the resistance of plug wire from end to end on cyl#3, it should read no more than 25Kohm IIRC. you may need a set of new wires.
if so get NGK TE58, they are cheap like $28 on amazon shipped free or $40 at local Advance Auto Parts.

165psi seem like a little low compression on that cylinder IMO, what are the rest at ? because what matters is how they look compared to each other while measured on engine at same (or similar) temperature and with same gauge.

[ls2ws6]

Originally Posted by fenixus

check the resistance of plug wire from end to end on cyl#3, it should read no more than 25Kohm IIRC. you may need a set of new wires.
if so get NGK TE58, they are cheap like $28 on amazon shipped free or $40 at local Advance Auto Parts.

165psi seem like a little low compression on that cylinder IMO, what are the rest at ? because what matters is how they look compared to each other while measured on engine at same (or similar) temperature and with same gauge.

** Problem solved. It was the plug wire(s). Funny how I over analyzed the whole things, first by pulling and having the injectors tested, and then having the coils tested.

Either way happy to say it was just a 40 dollar set of plug wires to clear up my misfire

[fenixus]

Originally Posted by ls2ws6

** Problem solved. It was the plug wire(s). Funny how I over analyzed the whole things, first by pulling and having the injectors tested, and then having the coils tested.

Either way happy to say it was just a 40 dollar set of plug wires to clear up my misfire

glad to see it's fixed
did you get NGK wire set? it's a very good brand, can't go wrong with those

[ls2ws6]

Originally Posted by fenixus

glad to see it's fixed
did you get NGK wire set? it's a very good brand, can't go wrong with those

No they were duralast from autozone (w/ a lifetime warranty)

I would have gone for the NGK set had I ordered them online though