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  1. p0304 - freeze frame readings

    Volkswagen Passat B5 Discussion
    hi, can anyone help me read the freeze frame? i took 3 reading at 3 different times, the only code is p0304. I swapped plugs, coils, injectors. checked wires, can't find a vac leak, MAF is good, checked coil wiring-looks good and Ohms is around 17.25 on all 4 wires. the engine light come on...
  2. Interesting voltage readings from coil packs

    Volkswagen Passat B5 Discussion
    So this may have already been addressed, I could not find anything. I have a screenshot I will post up ASAP - but I'm at work so I can't now. 2001 1.8t, all stock - no mods or chips etc. Running some diagnostics in VAGCOM, and noticed my voltage readings for the coils - cylinder 3 I believe...
  3. Boost gauge readings fluctuating

    B5 Garage
    My boost gauge has always read 20 vacuum at idle or coasting. And under full boost, 16 psi. All of the sudden it's reading 20 at idle or coasting in neutral. Yet coasting in gear it's reading 22. And under full boost at 14 psi. It seams the gauge is failing. I'm gonna try and find another one I...
  4. O2 Sensor readings and possible exhast leak..??? help

    Volkswagen Passat B5 Discussion
    Hello, During the summer I had the check engine light come on in my 2000 Passat GLS. It needed a new resignator. So my dad and brother replaced it and the lights went off for a couple days. After driving it for about 50 miles total, the light came back on. So I took it to the garage and they...
  5. Ran Vag Com - Some Weird Readings on O2 and Cooling System - Can anyone help diagnose

    Volkswagen Passat B5 Discussion
    Can anyone tell me what could be the problem as far as what O2 could be bad? I can give live readings if anyone can decipher those. Or if anyone has a tutorial on how to read these things that would be great also. Thanks for your help in advance So here is what I have as far as readings, faults...
  6. help installing a mechanical oil pressure gauge AND what should the readings be?

    Volkswagen Passat B5 Discussion
    Installing a mechanical oil pressure gauge this weekend, 01 b5 1.8 auto I know where im gunna put it etc, just want to know a few things: Anything i should look out for ,trouble wise? I dont wanna mess with a sensor etc, and i want accurate readings. I want to know what areas to stay away from...
  7. diagnostics help please scanner readings

    Volkswagen Passat B5 Discussion
    hello i have been having trouble trying to diagnose a code po101 on a 02 v6 2.8 passat i cant drive it stumbles,pops+dies falls on its face.i have checked the grounds,for vacumm/intake leaks,fuses,performed throttle adaptation,replaced spark plugs and MAF sensor.i cant seem to figure it out so...
  8. Fuel trim readings on a 2003 v6 4motion

    Volkswagen Passat B5 Discussion
    Was checking cel yesterday and only got a purge valve code but while I had it hooked up I ran some other tests available on the autoengenuity program generic obd2 for VW. Not to familiar with this yet so perhaps its nothing but one set of numbers is obviously way out of line of the others. Time...
  9. Any cool odometer readings out there?

    Volkswagen Passat B5 Discussion
    I saw this on the way to work today. Thought it was neat... Then, I saw this...even cooler! :thumbup: AJ
  10. correct boost gauge readings for an automatic?

    Volkswagen Passat B5 Discussion
    So I'm on the freeway today and i select down to 3rd from 5th at 75ish MPH and then WOT. Rpm goes to 6000 and boost gauge goes to ten PSI and holds (hardly any torque). Upshift to 4th, rpm goes to 4500 and boost gauge is at 20psi (and torque is 10 times the 3rd gear pull). Then tappers to 10psi...
  11. AC pressure guage readings, and more...

    B5 Garage
    '98 1.8T 5spd - manual AC controls. Sorry, in advance, if this info is already out there. I noticed my AC not blowing as consistently cold as in the past. After paying more attention to it, I noticed the compressor is turning on & off more frequently than in the past, and when off is when the...
  12. weird maf readings

    B5 Garage
    I was doing some logging with vcds-lite , since I am new to VWs. and I noticed the MAF appeared to be low compared to what I have been reading they should be. Can anyone confirm this ? where it reads above 350 g/s is when I had the car off (the suction pump broke so I had to put it back...
  13. 1.8t MAF readings with vag-com

    B5 Garage
    What are typical MAF readings on a properly running 1.8t? What is the proper way to test MAF function using vag-com? What sort of numbers mean what? If it matters, I'm asking specifically about a stock AUG. Any overview, explanation, links to procedures would be appreciated. I already...
  14. Smog Test readings and engine state

    Volkswagen Passat B5 Discussion
    I had my biannual California smog test done over the weekend and since many of us on this forum are so detail-oriented, I thought I'd plot the various measured gases. For California, they measure the gases at 15 MPH and 25 MPH. The two items that concern me are the large increases in nitrous...
  15. Advice needed on Climatronic readings.

    B5 Garage
    Ok guys, been trying to sort out an A/C issue and decided to take a look at the climatronic readings. Somethings not right... 2003 V6 waggon Climatronic readings that I am looking at channel #4 Exterior temp . delayed = 235 deg C #5 Exterior temp bumper = 255 deg C #6 Exterior temp...
  16. Can't Go Through MFA Readings and It Keeps Resetting by Itself?

    B5 Garage
    I am having this problem where I can only go through one next function reading on the MFA and then get stuck there unless I turn off and back on the ignition. Then I can only change one function reading and get stuck again. Also other than the real-time MPG reading, other function readings will...
  17. Oil pressure readings and info

    B5 Garage
    I finally got around to installing an oil gauge today. My engine was sounding funky, but most people (including the VW dealership) were telling me that it sounds normal. I ordered a new oil pump and chain tensioner, but decided to install the oil gauge anyway so I would know how bad of a shape...
  18. Low MAF readings for V6? Ramifications?

    Volkswagen Passat B5 Discussion
    (EDIT: Sorry, tried to put this in B5 Garage!) Since getting a VAG-com over Christmas, I've been playing around with it and the thing is turning me into a hypochondriac! :D Ross-Tech has a DIY page that says your peak MAF readings (g/s) in a 2nd gear run should be around 80% of your car's bhp...
  19. AC: Interior Temp readings

    Volkswagen Passat B5 Discussion
    Curious. I took a digital thermometer reading (stablized!) on my Climatronic running at lowest temp and full blast. Mine were 62.2 degrees F. Is that close to optimal? What is the temp. range that is? TIA
  20. 2 questions about N75 readings and the MAF / ECU hose

    B5 Garage
    Before we start my car is 3B 1.9 TDi Passat (AFN) Since my laptop is out of action atm I can't check my fuel trims to see if there is any vacuum leak showing Read up on testing the N75 modules for the cars and I don't know whether to be worried or confused as I understand the resistance...
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