Think i have broke it a bit... Now fixed it :D
25 July 2013, 01:10 PM
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Think i have broke it a bit... Now fixed it :D
2001 bug UK300 with PPP
got a boost gauge fitted, was making 17psi till the other night having a play, brushed the redline in second and the CEL came on for CPS - common on the bug. i then noticed its only making 7 psi now.
CEL is now off, got it to come on again earlier and now off again.
been having a look just now, cant find any air leaks or hoses split etc the boost is stable, ie not peaking then dropping off etc, just a constant 7psi.
got a pair of pliers on the actuator and its not too hard to pull out, but i have nothing to compare it to, to see if its that.
if i rev it in neutral the actuator will move a bit.
so thinking its either that, or the bleed valve thing that the hose goes to from the actuator.
what would you chaps suggest?
cheers
got a boost gauge fitted, was making 17psi till the other night having a play, brushed the redline in second and the CEL came on for CPS - common on the bug. i then noticed its only making 7 psi now.
CEL is now off, got it to come on again earlier and now off again.
been having a look just now, cant find any air leaks or hoses split etc the boost is stable, ie not peaking then dropping off etc, just a constant 7psi.
got a pair of pliers on the actuator and its not too hard to pull out, but i have nothing to compare it to, to see if its that.
if i rev it in neutral the actuator will move a bit.
so thinking its either that, or the bleed valve thing that the hose goes to from the actuator.
what would you chaps suggest?
cheers
Last edited by Fudgey; 29 July 2013 at 09:16 AM.
25 July 2013, 01:19 PM
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7psi is actuator pressure (give or take) so it could be that despite the CEL having gone off the car is still in limp mode. You need to reset the ECU to discount that. Otherwise I'd be thinking about the boost solenoid
25 July 2013, 01:25 PM
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cheers mate, is the boost solenoid the denso thing that the tee from the actuator hose goes to? it then vents back into the inlet. (so pretty sure it is!)
how would one go about resetting the ecu?
hopefully a colleague of mine will be back in work tomoz with his fault reader...
how would one go about resetting the ecu?
hopefully a colleague of mine will be back in work tomoz with his fault reader...
25 July 2013, 01:26 PM
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henrik, cheers mate might give it a go.
although i dont have a code for the radio if one is needed after disconnecting the battery?
is there a seperate fuse for the ecu?
cheers for the input lads
although i dont have a code for the radio if one is needed after disconnecting the battery?
is there a seperate fuse for the ecu?
cheers for the input lads
25 July 2013, 01:36 PM
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does the radio have a code tho?
i have a mountain of paperwork with the car, full service history, original bill of sale ect...
but cant find the sodding code written down any where lol
i have a mountain of paperwork with the car, full service history, original bill of sale ect...
but cant find the sodding code written down any where lol
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25 July 2013, 01:42 PM
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just had a look at the radio and there is nothing on it that says its coded, unlike other radios that you have to put a code in... so fingers crossed, i might disconnect the batt lol
25 July 2013, 02:12 PM
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just looked at another thread i found via the search and it says that you cannot reset the ecu by disconnection the battery...
argh, ill do it anyway and see what happens lol
argh, ill do it anyway and see what happens lol
25 July 2013, 03:03 PM
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Will a normal ODBII thing do it? guy at work has one and i used it before to clear the CPS code P0340.
can you reset the ECU with one of those?
cheers mate
can you reset the ECU with one of those?
cheers mate
25 July 2013, 06:22 PM
#18
I know all docs say you can't reset the ECU, but disconnecting the battery definitely did *something* on my car that made it boost properly afterwards.
Having said that, mine was in limp home mode due to poor fuel, but nevertheless, in limp home mode.
Having said that, mine was in limp home mode due to poor fuel, but nevertheless, in limp home mode.
25 July 2013, 09:25 PM
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Lilttle update then.
Had the battery off for an hour...
I now have 15psi of boost! But upon startup the CEL was lit....
Also it doesnt run quite right, feels a bit hesistant, misfire almost from 3-5k after thAt it seems not so bad.
So ill try and get hold of the OBD reader, but im going to try and ride in again tomoz, so it might have to wait....
So to summerise, disconnecting the battery DID make a difference
Anyone want to buy a UK300 lol?
Had the battery off for an hour...
I now have 15psi of boost! But upon startup the CEL was lit....
Also it doesnt run quite right, feels a bit hesistant, misfire almost from 3-5k after thAt it seems not so bad.
So ill try and get hold of the OBD reader, but im going to try and ride in again tomoz, so it might have to wait....
So to summerise, disconnecting the battery DID make a difference
Anyone want to buy a UK300 lol?
29 July 2013, 09:15 AM
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ok, think i have fixed it now lol
had a look yesterday, took the one spark plug i could get to out, had to remove battery etc and pulled the plug out, its a normal grey colour so at least that cylinder is running ok lol.
so had a look at all plug connectors etc and they all seemed ok, and for some reason i took the MAF sensor out and had a look at that...
it was black with grime etc! so i got out the isopropanol alcohol spray and a cotton bud and gave it a little clean.
i also had a look at the air cleaner as id not looked before, it looks a bit like a K&N but its blue in colour, wasnt particularly dirty either...
so all back together and car feels nice and smooth again, back to full power
D:
had a look yesterday, took the one spark plug i could get to out, had to remove battery etc and pulled the plug out, its a normal grey colour so at least that cylinder is running ok lol.
so had a look at all plug connectors etc and they all seemed ok, and for some reason i took the MAF sensor out and had a look at that...
it was black with grime etc! so i got out the isopropanol alcohol spray and a cotton bud and gave it a little clean.
i also had a look at the air cleaner as id not looked before, it looks a bit like a K&N but its blue in colour, wasnt particularly dirty either...
so all back together and car feels nice and smooth again, back to full power
D:
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