Help Needed! 4 Codes after Retune

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11-22-2008, 04:43 PM
C-WAY

Help Needed! 4 Codes after Retune

Well I went to autozone earlier to figure out what the deal was with the check engine light still being on. I figured maybe it was the radio harness due to the fact I dont have the updated one but it wasnt. They scanned it and returned me these 4 codes:

P0420 - Catalyst efficiency low-bank 1
P0430 - Catalyst efficiency low-bank 2

(Im assuming those are from having no cats, but I thought Allen deleted the Cats off my PCM?) Am I suppost to unhook the 0² Sensors so it does not throw codes?

Then the other 2 are:

P0171 - Fuel Trim bank one condition

They said the fuel system for cylinder #1 was running too lean or something?

P0106 - MAF sensor condition (said the PCM has noticed the input from the manifold absolute pressure sensor or barometric pressure sensor has changed too much) (Could this be from the retune or my intake tube being loose or off?)

Any knowledge to this problem and all help is appreciated!

-----> ALLEN OR MELISSA! Are yall open on wedensday? If so could I swing by the shop and see if allen could fix this problem? I could also bring my extra PCM by that way I wont have to mail it
11-22-2008, 08:50 PM
C-WAY

Anyone!?
11-22-2008, 08:57 PM
ff_jeff

did you un hook the battery when you switched the pcm? I dont think you should be throwing those codes if the o2's are deleted. But Im sure its something simple.
Bank 1 is the driver side cylinders. That could be that the front o2's are bad, or its really running lean.
11-22-2008, 08:59 PM
C-WAY

Quote:

Originally Posted by ff_jeff

did you un hook the battery when you switched the pcm? I dont think you should be throwing those codes if the o2's are deleted. But Im sure its something simple.
Bank 1 is the driver side cylinders. That could be that the front o2's are bad, or its really running lean.

Yea I disconnected the battery for sure. Im sure it is either the 0²s or my intake being loose or something :( Hopefully
11-22-2008, 09:04 PM
ff_jeff

when I had an air leak on my intake... it never popped a code... A/F ratio just ran a little lean. Like 13.5
11-22-2008, 09:20 PM
C-WAY

Quote:

Originally Posted by ff_jeff

when I had an air leak on my intake... it never popped a code... A/F ratio just ran a little lean. Like 13.5

Then it could be something with the MAF :(...Damn I hope this turns out to be something minor...
11-22-2008, 09:22 PM
ff_jeff

try cleaning maybe?
11-22-2008, 11:21 PM
///Audience

Quote:

Originally Posted by Aggie

Then it could be something with the MAF :(...Damn I hope this turns out to be something minor...

we didnt even touch the MAF besides to take the intake tube off. Tommorow lets check your intake and make sure its tightened well.
11-23-2008, 10:28 AM
yournamehere018

You said you had code P0171. Normally if your MAF is bad you will also get code P0174 which is the same thing but for the other bank. Check your bank one cylinder one sensor and see if it looks alright. If you really want to clean your MAf though, Autozone sells some cleaner specifically for it for $6.99. It will be in the front left corner of the store near the carb cleaner.
11-23-2008, 11:42 AM
LsxCody

damn man hope u get everything worked out
11-23-2008, 02:16 PM
C-WAY

Im gonna fiddle with everything today and see what I can do...

Im gonna try drive to Nelson Performance on my way to Austin Tues. or Weds. to see the fam for thanksgiving to see if these codes can go away.
11-23-2008, 02:40 PM
GasGuzzler

It should nit set those DTC's if the rear O2's were deleted and yes, they're setting because the cats are gone. As far as the lean code, it's kinda rare for one side only to set so look at anything on that bank that could cause a lean condition.
11-23-2008, 02:42 PM
C-WAY

Quote:

Originally Posted by GasGuzzler

It should nit set those DTC's if the rear O2's were deleted and yes, they're setting because the cats are gone. As far as the lean code, it's kinda rare for one side only to set so look at anything on that bank that could cause a lean condition.

So possibly it might have been a mistake on tuning?

How would I look at the bank? Just check the sensor?
11-23-2008, 02:45 PM
GasGuzzler

Look for anything on that side of the engine (bank) that can cause a lean condition. If the rear sensors were deleted in the tune, those DTC's would not set. If you can, look at BOTH banks' long term fuel trim and see if the other side is also on the verge of setting a lean code P0174.
11-23-2008, 03:07 PM
C-WAY

Quote:

Originally Posted by GasGuzzler

If you can, look at BOTH banks' long term fuel trim and see if the other side is also on the verge of setting a lean code P0174.

english please...lol jk!

Where and what do I look at?
Do you have a pic I could go by?:hyper2:
11-23-2008, 03:08 PM
GasGuzzler

You'd need a scanner.
11-23-2008, 03:36 PM
C-WAY

Quote:

Originally Posted by GasGuzzler

You'd need a scanner.

Thats kinda what I was thinking lol...A friendh as one Ill hit him up in a bit
11-23-2008, 06:26 PM
///Audience

non of this could be caused by the fact that some of your spark plugs are new and some are wet, rusted, and FUBAR?
11-23-2008, 09:30 PM
C-WAY

Quote:

Originally Posted by ///Audience

non of this could be caused by the fact that some of your spark plugs are new and some are wet, rusted, and FUBAR?

I just properly replaced them all the other day and put the 160* Stat thats all I did...