All Things Mk5 > How to Guides / Troubleshooting

Warm starting/cutting out issues

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Poverty:

--- Quote from: simonskerton on October 25, 2009, 08:46:29 pm ---id change them, you've done the plugs, so take the hole spark equation out.

 have you done your PCV. not sure if that could be at fault. If your manifold take off isnt tight it could cause fluctuations etc.

--- End quote ---

pcv catch can? No pcv mods for me so far.



--- Quote from: Nasir on October 25, 2009, 08:48:08 pm ---I know my car isn't the same (Golf 1.4 FSI MK5) but my car didn't start up from warm sometimes, turned out to be a temperature sender. The problem hasn't occured since. Maybe worth a try.

--- End quote ---

Could be route to look down, tbh if the coil packs dont do it, I think it will be time to let JKM or AMD have a go.

Janner_Sy:

--- Quote from: Poverty on October 25, 2009, 08:58:38 pm ---
--- Quote from: simonskerton on October 25, 2009, 08:46:29 pm --- have you done your PCV. pcv catch can? No pcv mods for me so far.

--- End quote ---

I mean your std one could have gone. they are a known weak point. is there someone elses oem Pcv that you could take off temporarily to have a go with maybe. or perhaps get to the catch can mod to elliminate it altogether
--- End quote ---

Poverty:

--- Quote from: simonskerton on October 25, 2009, 09:02:37 pm ---
--- Quote from: Poverty on October 25, 2009, 08:58:38 pm ---
--- Quote from: simonskerton on October 25, 2009, 08:46:29 pm --- have you done your PCV. pcv catch can? No pcv mods for me so far.

--- Quote from: Nasir on October 25, 2009, 08:48:08 pm ---
--- End quote ---

--- End quote ---

I mean your std one could have gone. they are a known weak point. is there someone elses oem Pcv that you could take off temporarily to have a go with maybe. or perhaps get to the catch can mod to elliminate it altogether

--- End quote ---

Could borrow cuprak1's pcv I suppose. Think I need to read up on pcv symptoms.
--- End quote ---

cuprak1:
my money is on possibly the cam follower which could of worn out, even more so after the hpfp was done.

What oil do you have again?

I might get the catch can soon so we can swap my PCV onto yours?

have to let me take a look but its always dark wen we meet up lol

john_o:
first check is get the actual fault codes and do a web search /ross tech wiki.
You may have more than one issue.

I'd always be tempted to suggest flashing back to stock , and even removing modifications to get to a known working state before tuning....

engine shaking etc sounds like coilpacks, can swap between cylinders and see if misfire is in same cylinder or not.

starting sounds like fuel pressure , be it from the low pressure side (in tank pump / filter etc) or high pressure side (rail,injectors,sensors) (you can log this via vagcom , and see how it drops once the engines turned off)

multiple dash lights can often be a sign of low voltage in the entire system, so id want to check your battery voltage under load ...

you couldnt be in better hands than JKM  :happy2:

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