Random Misfire Codes

[Sk2nrz]

I was just sitting in a drive thru and had the check engine light come on. I pulled the codes and had 12 tripped codes each code was twice.

P0300 Random multiple cylinder misfire
P0302 Cyl 2 Misfire
P0304 Cyl 4 Misfire
P0306 Cyl 6 Misfire

P0174 System to lean (Bank 2)
P1150 A/f Sensor Circuit Range/Performance Bank2/Sensor2

All this sounds like a O2 sensor to me any ideas on which would be of great help. Also as I was driving home the check engine light flashed for about 5 seconds and then the Vsc and Trac Off lights came on. I know of 2 other camrys that have had the vsc and trac off lights come on within a few days of each other. Anyone know of any Tsb's on this issue?

I cleared the codes drove around for about 15 minutes and only once did the check engine light flash on and off but never stayed on. Thanks

[marc780]

I cant tell whether your car is the kind that has a distributor cap or not (you dont say the model year or engine). The codes you mention sound like they are probably ignition related, so maybe it just needs a tune up.
If this engine has a distributor, inspect the cap and rotor; you may find them burned and needing replacement. Also check or replace the spark plugs if you haven't done that in a while. They could be burned, worn out, fouled, or have a wrong gap.

[Eye8Pussies]

from the codes that you popped, it sounds like the car must be running like ass

and my suggestion would be to check for vacuum leaks after the MAF- it sounds like your car is getting the wrong amount of air, and when the ecu compensates by either adding too much or too little fuel, it will either run super lean or super rich, giving both misfires and overheated o2 sensors

for a leak this big, check for a faulty throttlebody gasket- I found that mine was leaking like a seive at one point (as well as another huge leak) and it contributed to the exact same symptoms and codes that you pulled

[deekay140]

what year is it?

[gcorolla99]

this just suck when people don't post back their findings.

[somick]

Originally Posted by gcorolla99

this just suck when people don't post back their findings.

Still no sense waking up old threads...