Running rich after throttle body change

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oomz1975
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Post Fri Aug 16, 2013 8:09 pm

Replaced my throttle body, along with the tps, with a spare one.
The original developed a coolant leak.

Now the car seems to be running a little too rich...

Car was running perfectly before the change.

Any ideas?

1990 325i
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jimbom30cab
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Post Fri Aug 16, 2013 8:27 pm

is the TPS set up perfectly, they are quite fiddly to get right

if so then i'd check the TPS with your multimeter
oomz1975
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Post Fri Aug 16, 2013 10:14 pm

jimbom30cab wrote:is the TPS set up perfectly, they are quite fiddly to get right

if so then i'd check the TPS with your multimeter
Good shout...

I'll check back later. Cheers :)
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jimbom30cab
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Post Fri Aug 16, 2013 10:35 pm

I've found it needs to be exactly right between just before the click and not opening the butterfly, it's a very fine adjustment.

Worth also checking it's not full of oil and give it clean with something like carb cleaner etc
oomz1975
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Post Fri Aug 16, 2013 10:41 pm

jimbom30cab wrote:I've found it needs to be exactly right between just before the click and not opening the butterfly, it's a very fine adjustment.

Worth also checking it's not full of oil and give it clean with something like carb cleaner etc
Thanks....

I'm sure it's just adjustment, I had cleaned it prior to fitting.
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oomz1975
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Post Sat Aug 17, 2013 7:33 pm

Yep, adjusted/fiddled with the tps made it alot better.
Still get slight flats spots in the higher rev range, but overall idles how it should now.
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jimbom30cab
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Post Sat Aug 17, 2013 8:30 pm

:cool: