dallison

a couple days ago i noticed that when i started the car after work when it sat for about 10 hours in 15 degree cold weather, it would stall after shifting into drive. I would restart the cold car and put it in drive and the same thing would happen until it warmed up a minute.

I assumed it was a cold start sensor, and since all i really need to do if that is the case is to let the car warm up a couple minutes before driving it.


today was a different story. The car sat all day and started like a normal. i pull out of the parking lot and drive 5 minutes until i hit the highway.
I give it some gas to merge into traffic. I noticed a little bit of a miss but dismissed that to to an extremely cold day.

After a minute on the highway at 70 mph, the engine light flashes. ****.

the car still can hang with traffic but if i try to accelerate hard it is missing. I believe this is a "limp home" mode.

I could hear that the motor was much louder than normal and that acceleration was much more pronounced once i got off the highway.


So once home i get the codes 1133 0300 0302 0303 from the obdII.

It sounds like a mis-fire to me.

The car is a 99 es300 with 136k. Within the past 2 years i have replaced an o2 sensor, maf sensor, charcoal canister, timing belt, battery, plugs, pcv, fuel filter and always change the air filter(purolator).


I decide to get new plugs again since there are 35k on the current denso iridium's. I know these things go 100k, but i bought some just in case i found a bad one.


all plugs looked normal except the middle one near the firewall. It was a little darker and smelled like fuel. It was not wet, but darker. i only replaced this one and made sure the old ones were gapped correctly.

Afterwards i checked each of the front three coil packs unplugged while starting the car to see if it was a bad plug, butr the misfire was more pronounced when i tried this so who knows.

after this i got the codes 1305, 1315 and 1325. Most likely that was from trying to test the packs



Does anyone know what else i can try??

Can i take just the coil packs to the stealership to have them tested or do they need to be on the car?
Can an independent check these out also??



:cliffs:

car runs rough
is it coils?
or is it something else

dallison

i tried this and the motor fired up each time.
https://www.clublexus.com/forums/3238929-post2.html

i am wondering if this might be the culprit....
crank trigger sensor
https://www.clublexus.com/forums/per...ark-plugs.html

dallison

it looks to be narrowed down to codes 0300 0302 and 0303. I am going to skip the dry gas since it doesn't seem to be that kind of problem

dallison

I wasn't positive that it was the coil, so i called tho local goodyear service center and took it in for them to diagnose. No one else was able to get me in today. It cost me $95 to confirm my beliefs, but they also told me which cylinder it was. I called ahead of time to see who had the coil in stock, and everyone had the same price; list.

So, i paid $95 for the diagnosis and $95 for the coil from toyota. Not my idea of fun, but it is still cheaper than taking it to the dealer and then paying for the labor and extra's they charge. I also got it fixed myself and should have purchased the coil first and then try to install it, but it is fixed and i am happy with the result.

jevanof

I have the same problem, did you need new coil packs for cylinders 1 and 2?