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Old 12-05-2017, 03:51 PM   #1
gthphotography
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Default Throwing codes

Hey guys, I really need your input. I just finished putting the engine back in the truck. Before I took it out, I had two codes, p0304 and a code with no number associated with it. Now I have them again.
Things that I replaced while the engine was out:
Plugs
Wires
Injectors
Maf

I did not change the coil
I did not change the 02 sensors

What am I looking at? Coil? I know the 02 sensors are going bad because of the misfiring and rich running from before I pulled the engine.
And why a code with no number?
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Old 12-05-2017, 04:40 PM   #2
AfiRover
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Default Re: Throwing codes

when you pulled the motor why did you not do heads ?
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Old 12-05-2017, 06:58 PM   #3
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Default Re: Throwing codes

Quote:
Originally Posted by AfiRover View Post
when you pulled the motor why did you not do heads ?
my bad, heads done. I had a sticking valve in 3.
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Old 12-07-2017, 01:24 AM   #4
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Default Re: Throwing codes

DID YOU MOVE IT TO #4?
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Old 12-07-2017, 07:04 PM   #5
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Default Re: Throwing codes

What is this code with no number? How do you know it exists if you don't have a number? What's the description from your reader?

Swap the coils side to side as a diagnostic step. If no joy, then I'd start thinking about the cam/lifter condition or possibly wiring to the injector..
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Old 12-07-2017, 08:18 PM   #6
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Default Re: Throwing codes

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Originally Posted by squirt View Post
What is this code with no number? How do you know it exists if you don't have a number? What's the description from your reader?

Swap the coils side to side as a diagnostic step. If no joy, then I'd start thinking about the cam/lifter condition or possibly wiring to the injector..
code reader says two codes
only gives the code for p0304
reader is getting fixed
new coil is coming

if it were my cam, what would it look like when the piston is going up and down?
While the heads were off getting cleaned, I spent a lot of time cleaning the short block. This involved turning the engine by hand, and I will say that all the pistons rose and fell the same amount and it wasn't a difficult process, everything moved smoothly.
Now a lifter I get. I chose to not replace them.

Thank yoy for your help.
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Old 12-07-2017, 08:19 PM   #7
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Default Re: Throwing codes

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DID YOU MOVE IT TO #4?
no. both heads got sent to machine shop. i would hope that they did their job correctly.
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