First Libby issue...Taking bets!

Well crap... I went out to grab a bite to eat tonight after work, and when I left the restaurant, I noticed a rough idle...1/2 a second later I get the CEL and we enter Limp Mode. Yay. We hobbled to the nearest parking lot and did a little key dancing and came up with p0203 and p0303. So...any bettin' folks on here? Let's play!

Sounds like a pretty good case for a bad injector. You could try swapping #3 to #4 and see if it moves. That works for diagnosing the coil packs as well.

Yes it's injector #3 related. If swapping them doesn't move the error code to a different cylinder (after clearing this one), then look for a bad connection, broken or shorted out wire to the #3 injector, or it could even be the PCM is bad.

Even though I run Chevron fuels, I will add a few bottles of Chevron Techron Concentrate through, with a sold hwy boogie, every couple of months.
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That being said, nothing beats an emission service using pro chemicals.
I wonder how much a shop charges for that now a days?

For the poll, I'm having a hard time deciding between you having a bad injector, or you having a screw loose. :happy175:

CactusJacked said:

For the poll, I'm having a hard time deciding between you having a bad injector, or you having a screw loose. :happy175:

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CactusJacked said:

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Reminds me of an ex-wife.

Bob

Chased these codes for a while and finally ended up being a bad PCM. Hopefully not your issue as it was not cheap.

smittyfromPA said:

Chased these codes for a while and finally ended up being a bad PCM. Hopefully not your issue as it was not cheap.

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Much cheaper than a cracked piston.

...and the winner is....



Although loose screw is still a possible issue,but that won't be solved as easily as a bad injector!:insane: