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Old 09-30-2016, 01:21 AM   #1
Fuzzy1952
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Code PO405

Need help. Check engine light on. Replaced EGR, new ECM (flashed) and still getting code. Thinking electrical. Is there an electrical wiring diagram for the EGR ? Car needs inspecting. Thanks.
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Old 09-30-2016, 08:03 PM   #2
Chris Stewart
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Re: Code PO405

What year Bravada?

Here's some info,
http://www.fixya.com/cars/t12918939-code_po_405
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1992 Bravada, 201K, stock
1997 Bravada, 101K, stock...was "called away"

"Cornbread Red", 2001 Dodge 2500,4X4,HO Cummins Diesel,QC,SWB,6spd.,Banks boost&pyro,US Gage fuel press.,Edge Drag Comp,4"exh.,cowl hood, bhaf, black Holley pump, 140gph...13psi WOT, Vulcan Big Line, kevlar/ceramic single disc clutch, cheapo fuel cooler, 8x.010" vco injector nozzles, Cat turbo 62-65-.70A/R, 497hp 1089 tq 8/25/14

Time to turn so's you don't burn.
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Old 09-30-2016, 08:38 PM   #3
Fuzzy1952
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Re: Code PO405

The car is a 2000 Oldsmobile Bravada with a 4.3.
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Old 10-01-2016, 09:12 PM   #4
Chris Stewart
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Re: Code PO405

All I keep seeing is to check the wiring and connectors from the EGR valve back to the computer.
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1992 Bravada, 201K, stock
1997 Bravada, 101K, stock...was "called away"

"Cornbread Red", 2001 Dodge 2500,4X4,HO Cummins Diesel,QC,SWB,6spd.,Banks boost&pyro,US Gage fuel press.,Edge Drag Comp,4"exh.,cowl hood, bhaf, black Holley pump, 140gph...13psi WOT, Vulcan Big Line, kevlar/ceramic single disc clutch, cheapo fuel cooler, 8x.010" vco injector nozzles, Cat turbo 62-65-.70A/R, 497hp 1089 tq 8/25/14

Time to turn so's you don't burn.
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Old 10-01-2016, 11:55 PM   #5
Fuzzy1952
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Re: Code PO405

Thanks Chris for your help. Taking the car tomorrow to someone with electrical experience in cars. Praying for no codes so the car will pass NYS inspection.
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