What does P0420 mean on a Duramax?
P0420 Code: Catalyst System Efficiency Below Threshold (Bank 1)
What is the 9th injector on Duramax?
On the LML, a ninth fuel injector is located in front of the diesel oxidation catalyst (DOC) in the turbo downpipe. It receives its fuel from the aforementioned CP4. 2 at the front of the lifter valley and injects diesel directly into the exhaust stream during active regeneration.
How do I know if I have a L5P Duramax?
The Duramax engine has evolved from the original LB7 series to include the LLY, LBZ, LMM, LML/LGH, and now the L5P series. The simplest way to verify which series Duramax you have is interpreting the VIN# of the truck. With some exceptions, the 8th digit is the engine ID and it will either be a 1, 2, D, 6, 8, L, or Y.
What does engine code p2463 mean?
What Does Code P2463 Mean? OBD II fault code P2463 is a generic code that is defined as “Diesel Particulate Filter Restriction – Soot Accumulation”, and is set on all diesel applications when the PCM (Powertrain Control Module) detects an excessive accumulation of solid particulate matter (diesel soot) in the diesel particulate filter.
What’s wrong with my Duramax P0420?
Chances are it’s the 9th injector/hydrocarbon injector. During a forced/service regeneration the rpms is a lot higher giving high amounts of fuel for that injector. When on Highway it’s not flowing enough fuel. Seen it plenty of times for a p0420. If this dealer can’t figure this out they shouldn’t be touching a duramax.
What does the P0420 code mean?
Well, today the soot grams hit 42 and then it set the P0420 code. The truck isn’t showing any sign of trying to regen. Normally this truck will show signs that it’s going into regen.
What causes the p2463 O2 sensor to go bad?
Common causes of code P2463 could include the following- Defective DPF pressure sensor, or collapsed, damaged, and clogged pressure hoses Damaged, burnt, shorted, disconnected, or corroded wiring and/or connectors