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CSB: Vu - Local Forum n00b Questions Forum Unwritten Rules - New Pope Being Elected

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Acadia18

Acadia18

Autocross Champion
Location
The Greater Boston Metropolitan Area
Car(s)
2019 Golf R
Acadia18

Acadia18

Autocross Champion
Location
The Greater Boston Metropolitan Area
Car(s)
2019 Golf R
1669758502285.png
 
Acadia18

Acadia18

Autocross Champion
Location
The Greater Boston Metropolitan Area
Car(s)
2019 Golf R
jay745

jay745

What Would Glenn Danzig Do
Location
Slightly Outside Chicago
Car(s)
Mk6 racecar, Tacoma
Alright so this summer I noticed the car chugging slightly when it was warm, not full operating temp. Figured the low pressure pump was starting to show signs of needing replacement as that's what it does. I finished a track day in late september and drove it a few times after, everything was fine. One day I wanted to go for a drive and it was cranking but not starting, seemed like it wasn't getting fuel. Figured at 90k miles and a shitload of tracking I'd just replace both fuel pumps. Ordered new coil packs and spark plugs because why not, the coil packs had 18k miles, spark plugs only a few hundred but meh. So I threw the spark plugs in, coil packs first because that's the low hanging fruit but that didn't do it. I should also mention all 4 injectors were replaced and only have a few hundred miles on them if that. So next I replaced low pressure pump, and high pressure pump. Still seems like it's not getting fuel. Next I pulled the plugs and did a compression test - have compression in all 4. After that I tested to see if I was getting spark by grounding the spark plugs with them out and connected to the coil packs, tried starting it and I can see I'm getting spark on all 4. I can smell gas coming from inside from trying to start it so I disconnect the fuel rail and turn it over a bit to shoot the gas out thinking I flooded it. After some digging I decide to replace the fuel sender unit on the low pressure pump, reset the ecu by connecting the positive and negative cables together for about 20 mins. It started on the first try and stayed running for about 15 seconds, and was running normally which rules out any timing concerns, then it died again and won't restart. I'm not getting any codes either. At this point I'm thinking it's a wiring issue somewhere, possibly a crank position sensor, or camshaft position sensor.


TLDR:
  • Crank no start - no codes other than misfires.
  • Injectors are new
  • Replaced spark plugs/coil packs
  • Replaced low pressure fuel pump
  • Replaced high pressure fuel pump
  • Replaced fuel filter
  • Replaced sender unit for low pressure fuel pump
  • Car has compression on all 4
  • Car is getting spark on all 4
  • Tried a different battery
  • Bad gas is unlikely because it was driven for a while without problems and I only use shell 93
 
Acadia18

Acadia18

Autocross Champion
Location
The Greater Boston Metropolitan Area
Car(s)
2019 Golf R
Like right there, 7 lines up from the bottom.

1669759012267.png


45712. Convert that to a date, you get 2/24/2025. That's my guess as to when you'll get it.
 
Acadia18

Acadia18

Autocross Champion
Location
The Greater Boston Metropolitan Area
Car(s)
2019 Golf R
1669759335396.png


Can't even argue. Surprised I didn't get a 24hr ban.
 
Salami

Salami

Autocross Champion
Location
North Carolina
Car(s)
MK7.5R
jay745 said:
Alright so this summer I noticed the car chugging slightly when it was warm, not full operating temp. Figured the low pressure pump was starting to show signs of needing replacement as that's what it does. I finished a track day in late september and drove it a few times after, everything was fine. One day I wanted to go for a drive and it was cranking but not starting, seemed like it wasn't getting fuel. Figured at 90k miles and a shitload of tracking I'd just replace both fuel pumps. Ordered new coil packs and spark plugs because why not, the coil packs had 18k miles, spark plugs only a few hundred but meh. So I threw the spark plugs in, coil packs first because that's the low hanging fruit but that didn't do it. I should also mention all 4 injectors were replaced and only have a few hundred miles on them if that. So next I replaced low pressure pump, and high pressure pump. Still seems like it's not getting fuel. Next I pulled the plugs and did a compression test - have compression in all 4. After that I tested to see if I was getting spark by grounding the spark plugs with them out and connected to the coil packs, tried starting it and I can see I'm getting spark on all 4. I can smell gas coming from inside from trying to start it so I disconnect the fuel rail and turn it over a bit to shoot the gas out thinking I flooded it. After some digging I decide to replace the fuel sender unit on the low pressure pump, reset the ecu by connecting the positive and negative cables together for about 20 mins. It started on the first try and stayed running for about 15 seconds, and was running normally which rules out any timing concerns, then it died again and won't restart. I'm not getting any codes either. At this point I'm thinking it's a wiring issue somewhere, possibly a crank position sensor, or camshaft position sensor.


TLDR:
  • Crank no start - no codes other than misfires.
  • Injectors are new
  • Replaced spark plugs/coil packs
  • Replaced low pressure fuel pump
  • Replaced high pressure fuel pump
  • Replaced fuel filter
  • Replaced sender unit for low pressure fuel pump
  • Car has compression on all 4
  • Car is getting spark on all 4
  • Tried a different battery
  • Bad gas is unlikely because it was driven for a while without problems and I only use shell 93
Click to expand...

Yeap, it's exactly what we suspected.











































Part out and buy an Mk7 🤣
 
jay745

jay745

What Would Glenn Danzig Do
Location
Slightly Outside Chicago
Car(s)
Mk6 racecar, Tacoma
Salami said:
Yeap, it's exactly what we suspected.











































Part out and buy an Mk7 🤣
Click to expand...
Meh. I wouldn't buy another gti because they're slow and boring unless you dump a bunch of money in them. I would have sold my gti a long time ago if I didn't make it a track car.
 
Acadia18

Acadia18

Autocross Champion
Location
The Greater Boston Metropolitan Area
Car(s)
2019 Golf R
jay745 said:
Meh. I wouldn't buy another gti because they're slow and boring unless you dump a bunch of money in them. I would have sold my gti a long time ago if I didn't make it a track car.
Click to expand...

Should have bought Riceburner's R.
 
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