Why am I getting overboost all the time?
#1
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I used the spray stuff from halfords. It's not too expensive.
Glad the lights were an easy fix.
Edited as I can't type today!
[Edited by dnb - 10/2/2002 11:20:41 AM]
Glad the lights were an easy fix.
Edited as I can't type today!
[Edited by dnb - 10/2/2002 11:20:41 AM]
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Before having new clutch fitted, I could floor the accelerator pedal, boost gauge would peak at 0.9, then hang around 0.8 and maybe drop a bit.
since having new clutch fitted, if I floor the loud pedal the boost gague goes, ooh, anything to 1.5, and then I get the dreaded fuel cut.
more gentle teasing of the loud pedal shows that over 0.9 bar (standard max for My94 WRX Wagon?) I hit fuel cut.
Question is, why do I get it now? could the clutch have been that fecked (had the car for 2 years before it was replaced and had not been slipping until the last 2 months before replacement) that it was not causing all power to be put down?
Others onlt get overboost occasionally, but as said I get it all the time, to the extent that I can't floor the loud pedal, unless i want to hit the fuel cut, not nice.
Guess a nice restrictor/boost controller would be best solution, but just curious as to why it's happening all the time when others only get it occasionally.
since having new clutch fitted, if I floor the loud pedal the boost gague goes, ooh, anything to 1.5, and then I get the dreaded fuel cut.
more gentle teasing of the loud pedal shows that over 0.9 bar (standard max for My94 WRX Wagon?) I hit fuel cut.
Question is, why do I get it now? could the clutch have been that fecked (had the car for 2 years before it was replaced and had not been slipping until the last 2 months before replacement) that it was not causing all power to be put down?
Others onlt get overboost occasionally, but as said I get it all the time, to the extent that I can't floor the loud pedal, unless i want to hit the fuel cut, not nice.
Guess a nice restrictor/boost controller would be best solution, but just curious as to why it's happening all the time when others only get it occasionally.
#3
You could try cleaning out the boost solenoid and assosiated pipework, with brake cleaner/metal degreasant. I had excatley the same thing on my MY97WRX when I changed to a VTA dumpvalve, turns out it was just coincidence that overboost/fuelcut started happening at the same time.
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fancy giving a complete idiot like me very explicit instructions on where to find the solenoid (think it's the thing on the drivers side bulkhead, just to the left of my cusco brake cylinder support bracket) and how to clean it (assume you connect the black and green connectors to cause the solenoid to cycle?)
As you can tell, i'm not exactly technically minded, but will give something liek this a go. As you say, it could just be coincidence that it happened.
As you can tell, i'm not exactly technically minded, but will give something liek this a go. As you say, it could just be coincidence that it happened.
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Yep, sounds to me that some pipework got disturbed when the clutch was being done.
Justin
Justin
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Markus - a good start would be to clean up that engine
You should have said, we could have sorted that out on the island...
As said, check the pipes carefully (may help to have someone elses car to compare, as there are loads of pipes!), clean the boost solenoid using the under dash connectors and spray brake cleaner (made a lot of difference to my car )
Have you got the lights fixed yet?
You should have said, we could have sorted that out on the island...
As said, check the pipes carefully (may help to have someone elses car to compare, as there are loads of pipes!), clean the boost solenoid using the under dash connectors and spray brake cleaner (made a lot of difference to my car )
Have you got the lights fixed yet?
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Do you have an induction kit? If yes then ditch it in favour of a panel filter 9std or uprated) and see if that stops it.
I got terrible overboost when I fitted the HKS to my STi 2 but I resolved that by getting it re-mapped!
Tim
I got terrible overboost when I fitted the HKS to my STi 2 but I resolved that by getting it re-mapped!
Tim
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Dave, doh! should have mentioned it I know! Lights are now fixed. Had to rip out an additional lighting loom that did not seem to do anything, and just reconnected headlamps to original connectors and wired in the morettes. took me about an hour.
Tim, yup, have HSK induction kit, but its always been on the car, and don't really want to dump it. I do have the original airbox in the garage though, so I might consider doing this.
will try the boost soleniod cleaning first. What type of break cleaner? something from halfords do?
Tim, yup, have HSK induction kit, but its always been on the car, and don't really want to dump it. I do have the original airbox in the garage though, so I might consider doing this.
will try the boost soleniod cleaning first. What type of break cleaner? something from halfords do?
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