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Chevrolet: I HAVE A 2003 SUBURBAN, TERRIBLE MISSFIRE ON 4 AND…

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I HAVE A 2003 SUBURBAN...
I HAVE A 2003 SUBURBAN, TERRIBLE MISSFIRE ON 4 AND 6. HAVE CHANGED INJECTORS, PLUGS, WIRES, HEAD GASKET, COILS. I HAVE P0220 CODES, P1514, P1515 P1516 P0300. THIS VEHICLE RAN FINE ONE MINUTE AND TERRIBLE THE NEXT. WHAT DO YOU THINK?
Submitted: 3 years ago.Category: Chevy
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Answered in 10 hours by:
6/20/2015
Chevy Mechanic: Chris (aka-Moose), Technician replied 3 years ago
Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Chevy
Satisfied Customers: 53,364
Experience: 16 years of experience
Verified
I am sorry for the delay in getting a response to you. Sometimes we get alot of customers and just can not keep up. Sometimes you just have to wait for the correct tech to login.Do you even still need help. Sometimes customers seek help elsewhere or figure it out on their own before we get to each and everyone.I am sure I can help a lot or a little at least something if you give me a chance and work with me. I am going to get an answer to you regardless if you reply or not sooner or later.If your concern is urgent reply and let me know and if you have anything more you think will help me, to help you, let me know. I work on here normally 3pm-3am central. Thanks Chris
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Chevy Mechanic: Chris (aka-Moose), Technician replied 3 years ago
As long as the compression is fine, then its time to get a scope to monitor the PCM signal to the injectors. If its bad then its the PCM to blame. If its good then double check for loose connectors and incorrect gaped or cracked spark lugs You want a excellent 5 star answer & I would like to be rated the same for providing it. Consider I don't know your skill level & I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies. Try your best to respond with good detail so I can do the same. I normally log in at 3pm and work late. A rating is required. Your rating me, what I type. I am not an employee of this website, nor have control over the fees or the time it took to get a response. If you rate negative or not at all you still paid, but I get nothing. I want you pleased with me and my efforts, so let me know if your experience here has come up short.Thanks Chris
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Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Chevy
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