p0305 and p0432

[bgordon]

Both codes popped at same time, extremely weird!!

I changed spark plugs swapped coil packs, still cylinder 5 misfire, mild rough idle, poooooooooooor gas mileage (8.5)(not kidding)
Ima swap fuel injectiors to see if it follows that,
Any other ideas?

 

[ftaa]

the 0432 i ometime a bad cat... other time it i a bad o2 or having 2 different type of 02... the mifire.. tart checing electrical .

 

[bgordon]

I changed my passenger side bank 2 o2 sensor a few months back, I believe it was a boush but that code went away, these two codes popped when I decided to run a full tank of premium gas thinking the high octane will help clean the engine :/

 

[bgordon]

It's just like every 5 secs something is messing up on this jeep ugh...

 

[ftaa]

o2 sensor doesnt match the rest that why that code. you replaced all coils and plug?

chec wiring wiggle it it cant hurt.

 

[bgordon]

o2 sensor doesnt match the rest that why that code. you replaced all coils and plug?

chec wiring wiggle it it cant hurt.

Well that *****, why is that? Cause of the brand, cause of its the brand wouldn't the original o2 sensor code still flash be a use it's the wrong brand? Instead of the efficiency code?

I replaced the spark plugs and the code still stayed on, I then swapped coil packs and the code stayed on, I ha e been tempted on swapping fuel injectiors to see if it's one of those
I'm also using a cold air Intake kit from spectre

 

[ftaa]

sensors can be dumb lie that

 

[bgordon]

What about the engine misfire?
Could it be somthing stupid like that?

 

[ftaa]

could be a looe wire... poorly gapped plug... bad injector.

 

[bgordon]

Would anyone know a step by step or a picture guide to taking out a fuel Injectors? Lmao

 

[van462]

If you access to a fuel pressure tester (rent/loan one from autozone). Hook up the tester to the fuel rail port that is above cylinder 4. Turn on the key to run it should pessurize to around 43 psi. Turn off key and see if the pressure holds for a few minutes or does if it bleeds off. That will tell you if the injector is stuck open. Its a fairly quick test to do.

 

[bgordon]

Will do thanks a million will the pressure be low if an injector stays closed?

 

[bgordon]

If you access to a fuel pressure tester (rent/loan one from autozone). Hook up the tester to the fuel rail port that is above cylinder 4. Turn on the key to run it should pessurize to around 43 psi. Turn off key and see if the pressure holds for a few minutes or does if it bleeds off. That will tell you if the injector is stuck open. Its a fairly quick test to do.

Previous statement

 

[bgordon]

If you access to a fuel pressure tester (rent/loan one from autozone). Hook up the tester to the fuel rail port that is above cylinder 4. Turn on the key to run it should pessurize to around 43 psi. Turn off key and see if the pressure holds for a few minutes or does if it bleeds off. That will tell you if the injector is stuck open. Its a fairly quick test to do.

Would you have a picture of the location exactly where its at my cylinder 4

 

[bgordon]

Nevermind I found it

 

[bgordon]

I haven't had a chance to do it with all of the rain , what is the oem fuel injectors?

 

[bgordon]

SOLVED THE 305 CODE !!!!!
DONT LAUGH !!
Remember when I changed the spark plugs apparently one was loose :/ the gap widened just a little also at the same time I ran 2 cans of deadpan through the gas tank and so far the p0305 code is gone only thing left is the p0432 catalytic converter efficiency bank 2.

So Ima think out loud with my fellow jeepers !! Bank 2 is located on the passenger side of the jeep ok, I replaced the oxygen sensor on the passenger side of the liberty it was lower bank 2. The brand is Bosch , I'm also ru. I g a spectre cold air intake. Could the new o2 sensor be causing my p0432 alarm? Or air intake? Or am I ********? Or is my catalytic converter going out and if so can I just through me am aftermarket on and it be fine?

 

[twowings]

Please lose the CAI as soon as possible...bad for Jeep...

 

[bgordon]

Please lose the CAI as soon as possible...bad for Jeep...

How about this I'll put my old intake box and all back in the jeep but what about running the metal pipe into the factory air box and when you open the air box it will still have the cone attached to it? Would that be better?

Also would this cai be causeing my catalytic converter to mess up? I have had had one on here for 3 years and just had that particular code active for about 3 or 4 months

 

[bgordon]

the 0432 i ometime a bad cat... other time it i a bad o2 or having 2 different type of 02... the mifire.. tart checing electrical .

My second o2 sensor is a Bosch sensor, which I do believe is not oem would that be the reason for the 432 code because it's the bank 2 catalytic converter and usually the code means that the oxygenevels before the cat are the same after the cat and that code is on the same side as my new o2 sensor