Boost pressure TECHNICAL question
#1
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My TT has the iritating habbit of registering boost on the display even when statinoary at times. Now i know it's the boost pressure switch under the intercooler that's causing the irritation, I wondered if it's likely to have any other negative effects such as:
1) ECU thinks it's got boost when it clearly hasn't and maybe adjusting the fuel/timing to compensate
2) If it's registering 0.2 bar at idle, maybe it's registering 0.8 bar (max) when it's only really seeing 0.6?
Any thoughts would be appreciated before I pill the IC off!
Thanks
Alan
1) ECU thinks it's got boost when it clearly hasn't and maybe adjusting the fuel/timing to compensate
2) If it's registering 0.2 bar at idle, maybe it's registering 0.8 bar (max) when it's only really seeing 0.6?
Any thoughts would be appreciated before I pill the IC off!
Thanks
Alan
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Alan,
I think this is a fairly common problem. I had a similar problem with my car when I first got it. As far as I know it is just an indication problem, without any side effects. I went through two boost pressure sensors to get rid of the problem. Try doing a search and you will find other associated issues if it is more than an indication issue.
I think this is a fairly common problem. I had a similar problem with my car when I first got it. As far as I know it is just an indication problem, without any side effects. I went through two boost pressure sensors to get rid of the problem. Try doing a search and you will find other associated issues if it is more than an indication issue.
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#3
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Alan:
Not to worry, Sir.....its JUST the indicator.
The ECU gets manifold pressure data from the MAFS, not from that sensor or guage.
Not to worry, Sir.....its JUST the indicator.
The ECU gets manifold pressure data from the MAFS, not from that sensor or guage.
Last edited by Steve Weiner-Rennsport Systems; 01-12-2004 at 11:20 PM.
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Thanks guys. Rennlist is so great that not only am i joining, but i'm cancelling my PCGB membership in protest at it having such a difficult to access members forum. It should be open to the public like this one!