car is sluggish and drops off on heavy accel.

Asked by mkj145 Nov 17, 2014 at 06:35 PM about the 2006 Volkswagen Jetta 2.5L

Question type: Maintenance & Repair

Have several codes, po455 large evap leak and p0688 engine control relay short to positive, While monitoring datastream the throttle % dies off at WOT about 16% indicated when fully depressed, it is smooth til about 50% depressed and drops off.  does this car have pedal sensor and a tps? is the tps integral to throttle valve?

1 Answer
45,825

Deathjam4 answered 10 years ago

this is most likely a MAF sensor failure or your evap system has a leak or faulty pump.Check all the evap lines from the tank all the way back to the engine. Most of the time a drop off like this happens its almost always a sensor in the air flow system or vacuum leak in the lines. Go over all the vacum lines under the hood as well.

Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Volkswagen Jetta Questions

CarGurus Experts

  • #1
    Deathjam4
    Reputation
    12,620
  • #2
    Goodwrench707
    Reputation
    5,410
  • #3
    o_jayne
    Reputation
    2,680
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Volkswagen Jetta GLI
3 Great Deals out of 383 listings starting at $5,499
Used Volkswagen Passat
16 Great Deals out of 402 listings starting at $4,700
Used Honda Civic
180 Great Deals out of 3,705 listings starting at $1,995
Used Honda Accord
40 Great Deals out of 910 listings starting at $1,599
Used Toyota Camry
52 Great Deals out of 985 listings starting at $2,212
Used Toyota Corolla
108 Great Deals out of 2,035 listings starting at $2,795
Used Volkswagen Golf
26 Great Deals out of 444 listings starting at $3,987
Used Hyundai Elantra
163 Great Deals out of 3,544 listings starting at $2,995
Used Volkswagen Golf GTI
25 Great Deals out of 608 listings starting at $4,900
Used Nissan Altima
22 Great Deals out of 716 listings starting at $1,400
Used Mazda MAZDA3
74 Great Deals out of 1,510 listings starting at $2,495
Used BMW 3 Series
71 Great Deals out of 1,176 listings starting at $1,995
Used Nissan Sentra
77 Great Deals out of 1,812 listings starting at $2,195
Used Audi A4
43 Great Deals out of 698 listings starting at $4,750

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.