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p1128

  1. P1128 Fuel Trim System too Lean Caused by Exhaust Leak??

    Volkswagen Passat B5 Discussion
    I've been having a CEL come on and off for a few months with no noticeable drivability issues. Problem is, NYS inspection is here and I need this fixed. The CEL is from a P1128 too lean code. I've cleaned the MAF (it looked fine, no real dirt but I sprayed it down real good anyways), and the...
  2. Loss of power + CEL + 3 codes -- P1128 P0343 P0011 - $1300 repair?

    Volkswagen Passat B5 Discussion
    I have a 1.8T 5spd B5.5. Got the timing belt changed about 15,000 miles ago, now at about 97k. I've experienced sudden loss of power when driving on one occasion, with loss of performance which I feel is particularly prominent at low gears. CEL light has been intermittently on. Took the car...
  3. p1128 & P1136 CODES

    Volkswagen Passat B5 Discussion
    first off i have done alot of searching and reading. so i know what the codes mean. i just started getting these codes & also getting a rough idle. i have checked the MAF, i cleaned it with electrical cleaner & also tried running with it unpluged. It ran worse when unpluged so i think i can rule...
  4. Solve the P1128 code once and for all!

    B5 Garage
    Let us solve this problem once and for all. It cannot be that complicated. I need to get this CEL light off to pass emissions. Car runs great except it feels like the throttle is "floaty" sometimes.
  5. P1128 and my AUG

    B5 Garage
    Got a Emissions workshop twice yesterday but none today. I pulled codes and here is what i got. 1 Fault Found: 17536 - Fuel Trim; Bank 1 (Mult): System too Lean P1128 - 35-10 - - - Intermittent I am going to try cleaning the Air sensor tomorrow after getting some cleaner.
  6. P1128 code help

    B5 Garage
    Noticed a crimped 1/8 inch or so diameter vacuum line that runs from the top of the intake to the bottom of the intake behind the driver's side headlight on my 1.8 turbo. I think it may be causing the P1128 code. Does anyone know about this vacuum line? I also need the model # so I can replace...
  7. Can't shake P1128 "too lean" code, long story...

    B5 Garage
    Car in question is a 2002 1.8t 5mt wagon, 122k miles. Car is stock. The story begins a couple months ago when I got the car. I'm the 2nd owner and got a bunch of service records with the car. On my way home from buying the car, a mere 10 minutes after signing the paperwork, the CEL came on...
  8. P1128 and P1137 help

    Volkswagen Passat B5 Discussion
    I just got my 2000 1.8T ATW scanned at AutoZone, and I'm having error codes P1128 and P1137. I've searched, and most of the results pointed to replacing the MAF. My MAF failed last month, and I had it replaced. What else could be the issue? I'm not sure a new MAF can fail within 1 month...
  9. 17536 P1128 Long Term Fuel Trim mult.,Bank1 System too Lean

    Volkswagen Passat B5 Discussion
    I have a friend with B5.5 2001 1.8T and has this code 17536 P1128 Long Term Fuel Trim mult.,Bank1 System too Lean Any one knows what it is? he change the 2nd O2 sencor but the code came back....
  10. p1128 code and L-hose collapsing....

    B5 Garage
    I have pulsing rough idle, get p1128 code(too lean), boost is limited to 5psi or so, and my L-hose is somewhat collapsed (it's about 1 1/2 year old). Is the collapsed L-hose the result of another issue or is it just worn out and probably causing the trouble? As always, your shared knowledge...
  11. P1128: Long Term Fuel Trim, Bank 1, Too Lean

    Volkswagen Passat B5 Discussion
    Ok... so this is the second time I have gotten this code in the last week. I got chipped last wedsnesday and last thursday this code on the way to the stealership to get a new L-hose. I figured it just had to do with the fact the my L-hose was split in two. Replaced the L-hose, cleared the...
  12. p0300 p0301 p1128

    Volkswagen Passat B5 Discussion
    I just pulled this codes from my 2002 1.8t. whit 101K miles the car seems to be runing fine but I think it;s not at a 100%. and everytime I clear the codes the CEL comes back in less than 45 minutes of driving The p0300 and p0301 codes are supposed to be missfires, and the p1128 say fuel tim...
  13. Engine codes p1128, p1113 and p0442

    Volkswagen Passat B5 Discussion
    Hey guys, 2000 1.8t 5 speed ATW 110,000 miles - CEL is on and went to autozone to have codes read. Three codes popped up: P1128 P1113 P0442 (the guy mentioned something about A/F meter...MAF?) I believe the p1128 code is related to the MAF. Thinking about cleaning it but I might just replace...
  14. Code P1128 MAF?

    B5 Garage
    My car is throwing a P1128 code. I have searched around and found this to be the MAF sensor. Car runs extremely rough when frist started for about 20-30 seconds after that everything is fine except a CEL and "Emissions Workshop" warning. I am sure someone else has had this problem. Did replacing...
  15. CEL,Code P1128 and low boost, Bad Maf ?

    B5 Garage
    2000 Passat 1.8T 74k miles ATW engine code. I get a P1128 Manufactures Controlled Fuel and Air Metering when I check the codes. I also get the "Emissions Workshop" message at startup. Additionally I noticed that my boost is peaking at only 5 psi or so. Is this soft limp mode? I searched...
  16. P1128 / P1137 (2001.5 1.8T) Code Help?

    Volkswagen Passat B5 Discussion
    My car is a 2001.5 1.8T, auto, Wett chip, TT Diverter valve, K&N drop in. I had code.... P1128 Long Term Fuel Trim mult.,Bank1 System too Lean P1137 Long Term Fuel Trim Add.Fuel,Bank1 System too Rich I changed my o2 sensor, then I cleaned the MAFS, the check engine light went away in two...
  17. P1128 and P1130 codes - V6 B5 ATQ

    Volkswagen Passat B5 Discussion
    I did some research and noticed that the codes P1128 and P1130 are: 17536 P1128 Long Term Fuel Trim mult.,Bank1 System too Lean 17537 P1129 Long Term Fuel Trim mult.,Bank2 System too Rich 17538 P1130 Long Term Fuel Trim mult.,Bank2 System too Lean However when I went to AutoZone to get scanned...
  18. VAG COM reads: 17536 Fuel Trim: Bank 1 (system too lean) p1128. Possible problems?

    B5 Garage
    As I understand, the MAFS sensor is a common culprit. Air leaks I'm told is another common one but none can be found :confused:. Are there other things that could cause that code (17536 Fuel Trim: Bank 1 System too Lean p1128)? I'd just clean the sensor as I have read about here but the VW...
  19. emission workshop codes p1113 and p1128

    B5 Garage
    can anyone please tell me what to check, what to fix... the car is vw passat year 2000 1.8t, atw engine code and has about 80k miles i recently got the engine code and it's showing : P1113 O2S Sensor Heater Resistance Too High Bank 1 Sensor 1 P1128 Long Term Fuel Trim B1 System Too Lean also...
  20. P1128 Confusion

    B5 Garage
    My CEL came on while driving my 2000 1.8t passat and I took it to autozone in which they say was an UPSTREAM HEATED 02 SENSORS SWAPPED but I'm reading the DTC and it says something different... Is it really the oxygen sensor or is it something else? I have no idea where to even look for this...
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