Low boost SOMETIMES?!
02 June 2006, 10:15 AM
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Low boost SOMETIMES?!
Hi all, randomly after a bit of driving and only about 1/10 times, my car will only boost to 0.5bar, and not go above it (Normally 1.0-1.2).
If i switch the ignition off and re-start her, it's instantly "cured"?!
Engine check light doesn't come on and everything else seems fine.
Any ideas?! Much appreciated.
Jon
02 June 2006, 02:42 PM
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Originally Posted by Jonny_T
Hi all, randomly after a bit of driving and only about 1/10 times, my car will only boost to 0.5bar, and not go above it (Normally 1.0-1.2).
If i switch the ignition off and re-start her, it's instantly "cured"?!
Engine check light doesn't come on and everything else seems fine.
Any ideas?! Much appreciated.
Jon
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02 June 2006, 02:50 PM
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Originally Posted by Jonny_T
Hi all, randomly after a bit of driving and only about 1/10 times, my car will only boost to 0.5bar, and not go above it (Normally 1.0-1.2).
If i switch the ignition off and re-start her, it's instantly "cured"?!
Engine check light doesn't come on and everything else seems fine.
Any ideas?! Much appreciated.
Jon
03 June 2006, 12:09 PM
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In second gear only by any chance?
Isn't this heatsoak - or at least higher temps in the engine bay as this will always restricted / lower the level of boost won't it? Not sure why turning the ignition off and back on again would cure this though?
It's the switching the ignition off then on curing it that's baffling me!!
dump valve might be leaking or sticking?
Thanks for your help!
03 June 2006, 03:50 PM
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I've only just realised my ecu has a switch to switch it between standard and SCOOBYECU settings,
so I've taken all the cover etc off and will try flicking the wsitch to normal next time it happens and see if that works.
Jon
so I've taken all the cover etc off and will try flicking the wsitch to normal next time it happens and see if that works.Jon
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10 June 2006, 07:00 AM
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UPDATE...
When the ECU is switched to normal...the car runs fine, no probs at all.
When the ECU is switched to SCOOBYECU the car will run fine until you floor it, then as soon as it hits max boost it drops to 0.5bar and won't go above it.
I'm guessing this is "Safe mode" although no check light is on???
Gonna have a play with it this morning and see if i can find anything. I'm guessing it's something to do with it overboosting?!
Jon
When the ECU is switched to normal...the car runs fine, no probs at all.
When the ECU is switched to SCOOBYECU the car will run fine until you floor it, then as soon as it hits max boost it drops to 0.5bar and won't go above it.
I'm guessing this is "Safe mode" although no check light is on???
Gonna have a play with it this morning and see if i can find anything. I'm guessing it's something to do with it overboosting?!
Jon
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