1998 Audi A4 Lacks Power

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AUDI-GUY
  • MEMBER
  • 1 POST
Hi, i have audi a4 1998 2.8 v6 30v quatrro and it's manual. my car starts jerking at 1500 rpm and the rpm slwos down and it always lacks power. when i drive i have to press the gas pedal all the way to the floor to make the car start to move. i changed the gas filter already but that din't help. i went to this one place where they checked my computer and the code told me that there is a "throttle position malfunction" problem and also the check engine light is on and somtimes the car starts jerking while it's idiling and the check engine light flashs. also i have to start my car a couple of times to make it idle by itself. another thing is that i have to be in 5th gear to drive normaly on the highway. please respond as soon as possible :?:[b:fb40703e45][/b:fb40703e45]
Mar 7, 2006 at 2:52 PM
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PEPPERMRJ
  • ✓Experienced Mechanic
  • 1,158 POSTS
Sounds like you need to replace the throttle position sensor or check it's wiring, connection, and function.

Good luck and let us know. :)
Mar 10, 2006 at 10:48 AM
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LAURENCE
  • MEMBER
  • 7 POSTS
Hey,

I had a similar problem. Perhaps its not the same on. Anyways, here is it: Car was trembling, and lost complete power. Check engine light was on. All I had to do was to change my coil packs.

$60 in repair. Works fine now. I received a letter 2 months ago from Audi saying this was a typical problem and were having recalls on this one.

L.
Jan 19, 2010 at 5:06 AM

Suggested Repair

Test and likely replace the throttle position sensor, and inspect its wiring, connector, and function. A scan showed a throttle position malfunction.

Conversation Summary

A 1998 Audi A4 2.8 V6 Quattro manual lacks power, jerks around 1500 rpm, sometimes jerks at idle with a flashing check engine light, and is hard to keep idling. Full throttle is needed to get moving, and a fuel filter replacement did not help. A scan reported a throttle position malfunction. The expert advised replacing the throttle position sensor or checking its wiring, connection, and function. Another owner reported a similar power-loss issue fixed by replacing coil packs after an Audi recall notice.

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