5 mins to better throttle response (for some) with a 1.8T DBW

2954 Views 6 Replies 6 Participants Last post by shawnwes, Dec 24, 2014

shawnwes

Discussion Starter · Dec 23, 2014 (Edited)

Like many of you I've been experiencing less than enthusiastic throttle response from my 1.8T Drive by Wire. I've done many of the recommended easy fixes. Some of which improved throttle response.

I have no idea (other than instinct after reading Passatworld threads for the last 2 months) why it worked for me but it did and am passing it along w/all the usual "do it at your own risk" disclaimers.

Yesterday the following occurred on my '02 1.8T AWM with 295km by resetting my Passat's computer to clear some codes:

I unplugged both my battery leads - IMPORTANT - negative first as always.

After 10 seconds I touched the 2 leads together for 20 seconds.

Left it alone for 5 mins and then re-attached the battery leads to the battery - IMPORTANT - positive first

Performed a non-vagcom TB alignment by turning the key to the "on" position w/o starting for a min of 3 mins (cable is coming as a Christmas present from the Mrs.)

Started the car after 3 mins

Result: Throttle response from low rpm is greatly improved. Even at cold engine temp. (I live in Canada and generally will warm the car for at least a minute in Winter)

Your mileage may vary!

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Mtech

· #2 · Dec 23, 2014

Glad it worked for you, now reprogram all your radio pre-sets

)

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Reactions: 1

boyesreef

· #3 · Dec 23, 2014

Mtech said:
Glad it worked for you, now reprogram all your radio pre-sets )

i had mine off the battery for the good part of a month an still had my presets. and window settings. in fact all i lost was time. it was automatically noon (or midnight).

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VAGguy

· #4 · Dec 23, 2014

With a factory stereo I presume. My Pioneer Avic loses them automatically.

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1.8Tpassat12

· #5 · Dec 23, 2014

Ya i unplugged battery yesterday to try and clear cel. I unplugg positive and pushed brakes for 10 seconds and put positive back on and everything was still their.

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birdman829

· #6 · Dec 23, 2014

OP, ever heard of confirmation bias?

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shawnwes

Discussion Starter · #7 · Dec 24, 2014

birdman829 said:
OP, ever heard of confirmation bias?

LOL! I'd say it was more deductive reasoning (or "I haven't tried this before") and it looks like a TB alignment finally took hold! The only thing different this time was leaving the battery unattached for 5 mins and touching the cables together.

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