Can you help me with the proper fuel pressure

Tiny
JERRY BERG
  • MEMBER
  • 2004 AUDI A4
  • 117,000 MILES
WHAT IS THE FUEL PRESSURE FOR AUDI A4 1.8 TURBO. EVERY ONE TALKS ABOUT RANDOM MIS FIRE AND NO ONE IS CHECKING THE FUEL PRESSURE code p0300-p0301-p0302-p0303-p0304 I have replaced all coil packs fuel filter cleaned mas sensor there is no vacuum leaks. Replaced the gas cap spark plugs.
Saturday, October 15th, 2011 AT 4:12 PM

2 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
The best I come up with is 3.8 to 4.1 Bar, there are special adaptors and testing equipment to do this, I suggest that it is done at a dealer as you can damage fuel line connections if not done correctly.
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Sunday, October 16th, 2011 AT 12:45 AM
Tiny
F4I_GUY
  • MECHANIC
  • 3,302 POSTS
Have you check mechanical timing? Are the crankcase breather hoses cracked? Have you tested the MAF?
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Tuesday, October 25th, 2011 AT 10:09 PM

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