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      04-16-2017, 10:14 PM   #1
Our03z4
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Trying to Stall

When warm out my 2.5 Z4 5sp tries to stall at take off. I've changed the disa, new seals in the vanos, new coolant system also. Acts like it's not getting enough fuel and even when at speed it doesn't feel as peppy as normal. Any ideas?
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      04-17-2017, 04:54 AM   #2
rjahl
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Quote:
Originally Posted by Our03z4 View Post
When warm out my 2.5 Z4 5sp tries to stall at take off. I've changed the disa, new seals in the vanos, new coolant system also. Acts like it's not getting enough fuel and even when at speed it doesn't feel as peppy as normal. Any ideas?
Are you talking about a fast start and engine cut out?

If so, probably stability control or traction control cutting power.

I had the same issue until I changed tires. It was a little strange as I had no warning lights.
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      04-17-2017, 07:36 AM   #3
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Although it would not affect driving at speed, the idle control valve could be the culprit at take off and off throttle when coming to a stop.
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      04-17-2017, 08:10 AM   #4
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It's only at normal start and does not happen at cruise, though it does feel like the power is reduced at cruise.
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      04-17-2017, 09:14 AM   #5
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Any codes?
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      04-27-2017, 07:21 PM   #6
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It sounds like you're pretty knowledgeable here and I'm not one to insult anyone's intelligence, but with some cars and especially older cars a bad tank of fuel can do that especially under more performance driven cars. Sometimes when the oil is cool and if it's old or dirty you may also experience the same issues. Just a consideration.
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      04-27-2017, 10:54 PM   #7
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Quote:
Originally Posted by Arsonism View Post
It sounds like you're pretty knowledgeable here and I'm not one to insult anyone's intelligence, but with some cars and especially older cars a bad tank of fuel can do that especially under more performance driven cars. Sometimes when the oil is cool and if it's old or dirty you may also experience the same issues. Just a consideration.
I buy only top tier fuel from Costco, BP, or Shell and always from the same three stations. Also the oil only has about 1000 miles on it. I know what you are saying about the fuel for sure; once on a trip I bought Gulf brand in some broke down town and boy did it run poorly! Car seems to be running okay again but it was also cooler out. No codes btw. Thanks for the replies!
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