This is a really well formatted video, easy to follow along. I would say, it would be good to include the fuse box location next time and also specify that it is necessary to use a long triple square instead of a regular socket. I already had a regular so didn't think twice. Luckily i was able to buy one locally.
I replaced the pump just as in the video, placed back the fuse and pushed in the FOB. The car turned over and thought the lord answered my prayers. It idled for about 20 seconds, then engine started convulsing and engine shut off. I wanted to try the fuel regulator sensor first but could not find one anywhere in the local autozones. I feel defeated and depressed. Why did it have to start and run for a bit? That makes it that much worse.
My first thought would be to make sure the fuse was put back in the right spot. It is weird that it would run for a few seconds then shut down. Double check that the fuse isnt't blown as well. I think its a 25 amp fuse. Do you hear the fuel pump turn on when you open the driver door?
Those shiny pliers told me what I needed to know really my friend let me tell you modern cars have A LOT of shit going on even in the dealership with manufacturer manual and $50ks+ worth of scanners sometimes it is really hard to pin point the issue for us You can easily spend years on RU-vid searching this and that replacing half of the engine and getting no where If only you’d know how many cars we see the owner tried to DIY it and either has done things with no effect or made everything worse Also didn’t you say you’ve done compression test and there’s been a low compression in a cylinder!? I assume you haven’t don’t leak and/or wet test otherwise at least you’d know if there’s leak from valves or ring!! I know HPFP if absolutely rubbish on CDNB and it’s a good idea to replace it (with fuel pressure sensor) but in %99 of the times it ain’t gonna fix this engine’s legendary miss fire I hope you haven’t waste your money on new plugs , coils and timing 🤣
It may take a few cranks. It has to build up pressure, around 700 psi or so, to keep fuel pressure. Possibly you had residual fuel in the line to kick it on once? It helps if you have a scanner with live data and you can watch the fuel pressure build in real time.
@@elvrolet I’m going thru the same problem of just 1 cylinder missfire, everything has checked out good from compression to leak down to carbon cleaning & injectors my last resort would be the high fuel pump and follower
I get a rattle snake sound coming from the engine bay. A mechanic said that it's the HPFP that needs to be replaced. Fuel pressure was at 38.90 bar and he said it should be way higher. Also pressing the acceleration pedal, first there is a lag, engine increases rpm and after that the car starts to wake up. Can it be because of the HPFP?
more than likely, i have the same problem on my audi a4 2008, i opened the hood while the car was running and the HPFP was shaking like crazy, I looked at it while the engine was off, and i see that it was missing 2 bolts, i guess it came off or something. But i am currently getting the HPFP replaced and the pcv valve aswell.
I ended up pulling the motor and replacing the pistons/rings. Ran good after that. This motor had previously been "rebuilt" by a place in california. They used cheap pistons/rings which seemed to be causing the misfire/rough idle issues.
@@elvrolet why someone would go though the hassle of pulling a motor from a car and using cheap parts that are not even that much to begin with I will never understand