2020年7月23日 · 2018 3500HD - P129F code, left stranded. Jump to Latest 43K views 44 replies 18 participants last post by CODE4 Mar 6, 2025

2020年11月26日 · My 2018 GMC 2500 Denali 2500 Duramax L5P Has 2 codes. P129F & P228C. It still runs but you have to feather the throttle to get it up to speed. It also goes into a reduced power mode. I have read that there may be some wiring issues to the lift pump. It seams that the lift pump is making a strange noise during the initial key on 30 second run time.

2023年8月29日 · P129F and a few other codes related to low fuel rail pressure showed. IF you get 102A, don't ignore it, you could get stranded in the middle of the highway. Turned out to be the Fuel Pump Drive Control Module (#13540026), sometimes called the fuel pump power control.

2022年8月7日 · I stopped at AutoZone to have the code read (I was about 200 miles from home and wanted to make sure it was safe to drive) and the engine code was P129F - Fuel Pump Driver Control Module Fuel Pump Speed Signal Incorrect. No idea what that means, but will call the dealer tomorrow and get it in to be fixed. Will let you all know how it goes.

2023年1月13日 · I have a 2019 Chevy 5500 with 52,000 miles on it. Had the problem with crank no start and got code P129F. Did my research and found that it was the fuel pump control module. Saw one person say that they were told the computer had to be programmed to recognize the new module. I live an hour and a...

2024年8月12日 · 2018 L5P GMC 3500HD Denali CrewCab Dually Long Bed 68,889 miles. While 1300 miles away from Home Base and a couple turns after exiting the Interstate, the check engine light illuminated. I was able to view DTC with my Edge CTS3 Monitor. Codes are: P129F - Fuel Pump Driver Control Module Fuel...

2023年10月12日 · P129F.pdf. 92.1 KB Views: 44. Ron Nielson - Most of the information I provide relates directly to my 2008 ...

2018年10月26日 · Barely made it to the small shoulder and called good sams roadside service which never showed up. Read the codes while waiting on local tow company, and had P129F, P2635, P018B, P228C, and P228B. Towed to Carl Black chevrolet after hours, and learned in the morning that they don’t have diesel techs.

2024年8月5日 · I scanned for codes and got P0204 - injector control circuit #4 and P129F - Fuel Pump Driver Control Module: Fuel pump speed signal incorrect. Either of these codes alone would be pretty cut and dry what part needed replaced. But both of them together made me hesitate to just order an injector connector AND a FPCM.

2024年11月22日 · Your truck's codes (P1002, P129F, P228C) and symptoms suggest a fuel system issue, likely involving the high-pressure fuel pump (HPFP). Start by inspecting the fuel filter for debris or metal shavings, which indicate HPFP failure and possible system contamination. Check the lift pump (low-pressure supply) to ensure adequate flow and pressure.