Volkswagen Passat Forum banner

a or f

  1. a/f ratio for stock aeb ?

    Volkswagen Passat B5 Discussion
    So since I got my car back to stock and my new wideband installed I can see the a/f of stock. Idk what its suposed to be but I think its a little lean under wot. From 13.7 at 3000 to 11.5 at 6000. . At dle it slowly goes between 14.2 to 15.3 back and forth. So. that sounds good knowing 14.7...
  2. help with fixing the pc16 a/f

    Volkswagen Passat B5 Discussion
    So as shown in my previous post with the dyno, I'm hitting 11.5a/f at 3400rpm, then from then on going in to the 9s and back to 11.7 later on around 5700. I need to try to fix the dip to the 9s, I cant lower the fpr because then I would be lean up top. Has any one used a rpm based boost...
  3. FS- NEW boost and A/F gauges w/ pods

    Parts For Sale
    I have a brand new boost and air fuel gauges with individual pods that I decided I am not going to use. Both gauges are still in there original boxes, pods never opened either. Would like $100 shipped or best offer. Interested, let me know
  4. WTB: Wideband A/F gauge

    Parts For Sale
    got one? let me know.
  5. A/F control

    Volkswagen Passat B5 Discussion
    I checked my car with Vag-Com, and wanted to set the readiness after cleared some cat efficieny DTC's... Readiness was okay: But A/F control wasnt: What this A/F control really means? If it says that the A/F system not okay, what should I check or replace? All other channels (lambdas, evap...
  6. What kind of A/F ratios are best with water/meth?

    Volkswagen Passat B5 Discussion
    So I finally got my wideband installed and I've found that I'm running almost 11:1 on the nose. Would it be wise to lean it out to 12:1? I could probably pull it off with the W/M. However, I guess what I need to know is that would the potential gains (if any) be outweighed by the risk of...
  7. Anyone have a A/F gauge installed?

    Volkswagen Passat B5 Discussion
    While looking into a a/f gauge i noticed that some cars come stock with wide band o2 sensors, do the passats have wideband sensors or narrow band sensors?
  8. Digitally tune your own A/F ratios for

    Volkswagen Passat B5 Discussion
    I was looking at an intercooler sprayer in another post when I wandered into this http://www.autospeed.com/cms/A_2418/article.html It's an interceptor type tuner with a digital adjuster. Looks like if you combined an innovate wideband sensor package with it you could have a pretty good...
  9. K04 A/F, injector upgrade questions

    B5 Garage
    OK, quick history history on my ride. I have a 98 AEB, K04 w timing advanced to 20deg BTDC/19psi and water/methanol injection. I've been using the engine's narrowband O2 sensor (block 031 on vag-com) to give me an idea of my A/F ratios. Based on a table that rusty produced It looks like I'm...
  10. a/f ratio gauge

    Volkswagen Passat B5 Discussion
    i am having a problem hooking up my a/f ratio gauge. on the pre-cat O2 sensor there are 5 wires and according to the haynes repair manual i have, it says there is only 4 and the wire colors are different then they say in the book. can anyone tell me which color wire i have to tap into to get...
  11. FS: '02 manual 1.8t ECU & A/F Gauge

    Classified Archive
    Socketed ECU from a manual '02 1.8t with the stock chip $100 OBO 4B0 906 018 CM Purchased a few months back with a GIAC X+ chip, but it was easier to have my ECU socketed since GIAC headquarters is less than an hour away and I don't have a VAG-COM to change ECU from manual to tip. Autometer Air...
  12. help with A/F gauge install

    Volkswagen Passat B5 Discussion
    ok quick question, I am putting an A/F gauge in my car, i have a 2004 1.8T, I know my car has a factory wideband O2 sensor, but i am wondering, should i hook it up to the upper 02 or the lower 02 also which wire, I am about to go onto autometers site for help, but i wanted to check here first...
  13. Wideband o2 sensor with A/F ratio gauge..

    Volkswagen Passat B5 Discussion
    I know B5's have narrowband 02 sensors, so hooking up an AF gauge won't really tell me much until WOT. I'm about to buy some gauges, and I'm wondering if i could add a wideband 02 sensor and hook it up to the AF gauge. Anyone done this or something similar? I'll be building an exhaust soon so i...
  14. How to adjust your a/f ratio

    Volkswagen Passat B5 Discussion
    I'm running a bit lean and I'm looking for a simple solution to get it fixed. Is there anything I can do with a VAG-COM or am I going to have to do something else.
  15. A/f Ratio

    Volkswagen Passat B5 Discussion
    hey guys any1 knows how to wire the af ratio gauge. i know it goes on the o2 sensor but which wire is it. thanks
  16. FS : Autometer A/F meter Phantom

    Classified Archive
    FS : Autometer A/F meter Phantom SOLD Bought it used and never install it. Never got a chance to buy 2nd column pod. I think I will never put it on, so someone can use it instead. 100% working condition, no scratches Price : $40 shipped
  17. FS-IMP Concepts stealty Boost AND A/F meter-INDASH

    Classified Archive
    I am selling my IMP concept in-dash boost and A/F meter. Visit www.impconcepts.com to see what is for sale here... The kit comes with Completed Boost Gauge Controller, Custom Calibrated to 1.5bar, Upgraded Dimmer to drive the 10 AFM LEDS, 30 LEDS in combinations of Red, Green, Amber and...
  18. WTB: A/F Gauge

    Classified Archive
    just throwin this out there...seein if anyone might have one laying around that they don't use. i've been wanting one for a while, plus i think i'm starting to have some richness issues, and this would help me find a verdict. Thanks to any who look/offer! :thumbup:
  19. FS: A/F gauge and Audi A4 Engine Cover

    Classified Archive
    Faze A/F gauge. it's new and has never been installed. I paid $50 about a year ago and never got around to installing it. All the parts and wiring are included, as is the box, although I've lost the instructions(will search the garage). First $30 takes it. Shipping is on me Audi Engine Cover...
  20. A/F Gauge install?????

    Volkswagen Passat B5 Discussion
    I have been looking through the forums for a wiring diagram for the o2 sensor so I can install my a/f gauge but I cant seem to find one.Anyone have one or know which wire is the signal wire on the o2 sensor?
Top