Cali emissions P0380 code - Chevy and GMC Duramax Diesel Forum

01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 18 (permalink) Old 03-06-2012, 03:41 PM Thread Starter
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Cali emissions P0380 code

I've searched and tested the P0380 code on my truck with cali emissions. I tested both harnesses that are plugged into the relay, the wires in the plug on the drivers side all ohm'd out with .7 ohms. The plug on the passenger side just kept jumping around between 100 and 50 ohms. What would be the problem here? Am I even testing the glow plugs right?

2004 Silverado 2500HD LB7
Interior:Autometer boost gauge, Autometer EGT gauge, Batman bobbelhead
Engine: AFE CAI, 5" turbo straight pipe with 6" tip, EGR delete
Exterior: Cranked T-bars, 33" mud terrains, back rack, custom wrapped bow tie
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post #2 of 18 (permalink) Old 03-07-2012, 08:30 AM Thread Starter
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Any ideas?

2004 Silverado 2500HD LB7
Interior:Autometer boost gauge, Autometer EGT gauge, Batman bobbelhead
Engine: AFE CAI, 5" turbo straight pipe with 6" tip, EGR delete
Exterior: Cranked T-bars, 33" mud terrains, back rack, custom wrapped bow tie
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post #3 of 18 (permalink) Old 03-08-2012, 11:49 AM Thread Starter
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Bump

2004 Silverado 2500HD LB7
Interior:Autometer boost gauge, Autometer EGT gauge, Batman bobbelhead
Engine: AFE CAI, 5" turbo straight pipe with 6" tip, EGR delete
Exterior: Cranked T-bars, 33" mud terrains, back rack, custom wrapped bow tie
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post #4 of 18 (permalink) Old 03-08-2012, 12:12 PM
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Bump to the top.

This code comes and goes on my cali lb7. id like to kno what the solution is and what i need to check.

Trevor
2004 GMC LB7
Low and Slow
EFILive, Stock Trans and DJM 3-5 drop
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post #5 of 18 (permalink) Old 03-10-2012, 03:17 PM Thread Starter
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Bump

2004 Silverado 2500HD LB7
Interior:Autometer boost gauge, Autometer EGT gauge, Batman bobbelhead
Engine: AFE CAI, 5" turbo straight pipe with 6" tip, EGR delete
Exterior: Cranked T-bars, 33" mud terrains, back rack, custom wrapped bow tie
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post #6 of 18 (permalink) Old 03-20-2012, 11:04 AM Thread Starter
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Can anyone help me?

2004 Silverado 2500HD LB7
Interior:Autometer boost gauge, Autometer EGT gauge, Batman bobbelhead
Engine: AFE CAI, 5" turbo straight pipe with 6" tip, EGR delete
Exterior: Cranked T-bars, 33" mud terrains, back rack, custom wrapped bow tie
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post #7 of 18 (permalink) Old 03-20-2012, 11:10 AM
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i got that code constantly so i just shut it off with efilive lol.

but to test the glowplugs, unhook each one and put one lead from your dmm on the end of the plug and the other lead to the block. you should get 2-4 ohm's when testing each plug.

edit: the side that you are getting 50-100 ohm's has a short somewhere which is probably causing your problem.

2001 CCSB

built trans . S464 . AD2 165 . 7" stack
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post #8 of 18 (permalink) Old 03-23-2012, 02:16 PM
 
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Chevy has a recall/warranty update on the glow plugs situation. 10 years/200,000 miles is the coverage for the errorthat is happening. I get the same thing on my 03 and I just have to make the time to take it in and get it fixed FOR FREE.
Hope that helps.
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post #9 of 18 (permalink) Old 03-23-2012, 02:18 PM
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are you seriouse about the warranty.... will me having mods make them not fix mine?

03 CCSB EFI + 5" STRAIGHT PIPE + 33X12.50 18S ON EAGLE ALLOY 197'S + 250K MILES
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post #10 of 18 (permalink) Old 03-24-2012, 01:08 PM
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Quote:
Originally Posted by SteelerFan5150 View Post
Chevy has a recall/warranty update on the glow plugs situation. 10 years/200,000 miles is the coverage for the errorthat is happening. I get the same thing on my 03 and I just have to make the time to take it in and get it fixed FOR FREE.
Hope that helps.
Ive heard about this warranty multiple times as well. Is there any place i can go to see this officially in writing. Ive been to two dealers in my area and they both tell me the 10/200000 warranty isnt true. Id like my P0380 code taken care of too.

2002 Chevy Silverado 2500HD
280,000 miles
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