Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
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We doubled checked the boost pipes and all are on tightly so have ruled that out, im pretty sure there is a leak on the exhaust manifold gasket and on the pre-cat pipe but the blowing sound go's as soon as the car is up to temperature so thats another thing to sort out too,
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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frostyD
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Registered: 16th Mar 07
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Tighgten up all the manifold studs
[Edited on 25-05-2010 by frostyD]
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Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
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They're all rusted to fook so im just going to hold out until i get a vxr unit
Its been down at the garage for a few hours and they just called to tell me that the 'Turbo Boost Actuator sensor' is at fault, they can't get the part until friday so will be a few more days until its hopefully back to normal
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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.dean.
Member
Registered: 21st Sep 07
Location: Hindley, Wigan Drives: Like Its Stolen!
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any luck?
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Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
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UPDATE 29/05/2010 - Fixed and more boost?
Well went to the garage and they did what they said they would do, replaced the dud sensor and let one of the mechanics who I trusted take it for a spin. came back and said that the car still wasn't running 100% in his opinion, left it with them a bit longer and they diagnosed a fault with the map sensor, low voltage or something along those lines.
So they kindly let me borrow a working one whilst they order in a new one for me which should be here in a few days.
So onto the weird part, they promised me the car would use alot less petrol with average use and will be alot quicker, i didn't really believe it at first...
But they where true, fook me the car has changed, they said that i was more than likely sold the car like it and never noticed there was anything wrong, but they where correct Im using alot less fuel both normal town driving and flooring it which surprised me, and it feels like Ive had the car remapped
Before it would overboost to around 0.7 bar and settle at 0.5 bar, and slightly higher in the higher gears, but now it boosts at 1 Bar and overboosts slightly over 1 bar.
I don't think Ive asked any other Zlet owners what there car produces boost wise but always thought 0.5 bar was normal, I love the extra power and have been in Newquay all night with it and no problems what so ever, not sure if it should be boosting at 1 Bar but Im sure one of the Astra peeps on here can shed some light
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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.dean.
Member
Registered: 21st Sep 07
Location: Hindley, Wigan Drives: Like Its Stolen!
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1 bar = 14.5037738 pounds per square inch
mines only at 16 psi, so id say thats quite high!!
take a picture of the threads at the bottom of the actuator
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connollygt30
Member
Registered: 16th Nov 08
Location: West Lothian
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My rs turbo went like fuck and was boosting more for a few days before my turbo shat itself
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Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
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There you go dean
And a leaky pipe
Still not having any luck finding them in silicone so may have to purchase some standard replacements
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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frostyD
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Registered: 16th Mar 07
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Is there a silver SRi Turbo around newquay ?
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Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
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Think so mate, seen the same one in Newquay and St Austell in the last 2 weeks.
Pro drive kit, drilled and grooved discs all round, first time I spotted it was on Penta's but last time I saw it was on some aftermarket 5 spokes.
There is a few Astra Turbo's around these parts, mostly coupes.
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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frostyD
Member
Registered: 16th Mar 07
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Oh ok, not the right one. Would have been really low on standard black turbo wheels. sounds lovely and is a quick car.
Your boost seems fine now maybe a psi on the high side but will be fine, your ecu will put it into limp mode if it doesnt like it aslong as your on standard map.
[Edited on 29-05-2010 by frostyD]
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Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
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Im pretty sure Ive seen that aswell, was last year sometime when I still had the Corsa, in Newquay alot and going there tonight so will keep an eye out for it.
Yea did 100 miles last night and the car was spot on, no warning lights and drove perfect.
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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frostyD
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Registered: 16th Mar 07
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Yea probably the one.
Yeah it will be fine then.
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Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
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Spoke too soon, warning lights back on and the car went into limp mode for around half an hour, wouldn't let me go over 70ish mph and kept cutting power when coming onto boost, lights been on all night but it did come out of limp mode but still cut power when flooring it and then resumed full power a second later, did a pedal test and got the code 1106, so googled it and it relates back to the map sensor again, but says its likely to be something else thats causing it.
Other sites suggest it could be a faulty AFM, boost pressure sensor which I have had replaced, sticking actuator or a faulty wastegate.
Then Ive also heard things like oil in the boost pipes getting into the sensors and making them not read properly and also heard about some sort of bad earth and people do a modifcation to get a better earth.
Its alot to look into I think, and considering the MAP and Boost pressure sensor have been replaced I need to look into it abit further and cover everything.
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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Warren G
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Registered: 14th May 06
Location: Kent
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bring it up and il sort it  then map it 
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frostyD
Member
Registered: 16th Mar 07
User status: Offline
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Wind the actuator back a couple of turns and check the wastegate still moves freely
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Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
User status: Offline
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I haven't touched the actuater since owning the car, and warren its being left on the drive as I have a list to go through of things it could be, type in 'z20let p1106' into google and soo many people have had the same problem, few replied with having fixed it but turned out to be different things everytime.
So far the list consists of:
.Check boost pipes for oil
.Check wastegate to see if its faulty
.Have AFM checked
.Have both BCS's checked
.Look into Earth mod which people on other sites have mentioned
And there is likely more to be added to that list.
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
User status: Offline
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Well it all went abit tits up today, eml went off yesterday then came back on today, at first I thought it went into limp mode but the car just lost all power, liked i had dipped the clutch and was just rolling on, had to stop at a roundabout and pull over.
Turned the car off and on again and I could just about get it to move and managed the journey home.
Really doing my nut in so switching my insurance policy over to my old mans Vectra Gsi and use that for the time being, and the Astra can sit on the drive until its been fixed which is probably going to be a while
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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dan-sport
Member
Registered: 9th Oct 07
Location: Bushbury, West Midlands
User status: Offline
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when you taking it back to the garage then?
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Warren G
Member
Registered: 14th May 06
Location: Kent
User status: Offline
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ecu
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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warren
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Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
User status: Offline
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Just finished doing the earth mod, eml is still on but the car drove fine, full power on tap and gave it abit of a run and everything seemed normal.
Its booked in for another session with the garage this Monday so just trying to do the bits I can do myself before it goes back.
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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Pete_vxl
Member
Registered: 24th Nov 06
Location: Lochgelly, Fife
User status: Offline
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that is pish. Hope its fixed soon mate. If it makes u feel any better my handbrake wont hold my rear wheels! And according to my boost gauge im boosting to 20 psi on standard ecu and engine
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Adam C
Premium Member
Registered: 10th Jan 07
Location: Cornwall UK Drives:Arden Blue Gsi T
User status: Offline
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quote:
Originally posted by Pete_vxl
that is pish. Hope its fixed soon mate. If it makes u feel any better my handbrake wont hold my rear wheels! And according to my boost gauge im boosting to 20 psi on standard ecu and engine
Bit of a bummer, hope you get yours sorted mate, Im int he same boost, its always boosted at 0.5 bar, as soon as I get the map and bcs sensors replaced it starts hitting 1 bar and slightly higher
My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
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ChrisBoom
Member
Registered: 6th Dec 06
Location: Highland
User status: Offline
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What is this earth mod? I cant seem to find anything about it. Mine is running fine atm so I don't need it anyways.
Hope you find out what's up with it, as I said before, get op-com, its so useful for diagnostics
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