Impreza 1995 Cutting out on Boost HELP
#1
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Hi, Long time since we have been on here, but we need some help.
1994 L Impreza WRX (JAP IMPORT)
Aftermarket front mounted intercooler
On hard Acceleration:
1st Gear, Perfect
2nd Gear Perfect
3rd Gear Cuts out
4th Gear Cuts Out
5th Gear Cuts Out
Engine/boost cuts out(If you didn't have seat belt on you would almost go throught the windscreen.
Only on accerating hard this happens, it cuts out sort of when the boost is at its peak point.
Boosting at 0.8/0.9Bar Max
We have already changed:
Coil Packs
Boost controller solonoid
Found wire fault(Rectifid)
No Fault codes found
No brake down in plugs, all checked and ok.
Standad ECU, All showing to be ok on the computer
![Notworthy](https://www.scoobynet.com/images/smilies/notworthy.gif)
1994 L Impreza WRX (JAP IMPORT)
Aftermarket front mounted intercooler
On hard Acceleration:
1st Gear, Perfect
![Smile](https://www.scoobynet.com/images/smilies/smile.gif)
2nd Gear Perfect
![Smile](https://www.scoobynet.com/images/smilies/smile.gif)
3rd Gear Cuts out
![Whatever Anim](https://www.scoobynet.com/images/smilies/Whatever_anim.gif)
4th Gear Cuts Out
![Whatever Anim](https://www.scoobynet.com/images/smilies/Whatever_anim.gif)
5th Gear Cuts Out
![Whatever Anim](https://www.scoobynet.com/images/smilies/Whatever_anim.gif)
Engine/boost cuts out(If you didn't have seat belt on you would almost go throught the windscreen.
![Freak3](https://www.scoobynet.com/images/smilies/freak3.gif)
Only on accerating hard this happens, it cuts out sort of when the boost is at its peak point.
Boosting at 0.8/0.9Bar Max
We have already changed:
Coil Packs
Boost controller solonoid
Found wire fault(Rectifid)
No Fault codes found
No brake down in plugs, all checked and ok.
Standad ECU, All showing to be ok on the computer
#5
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try a fuel cut defencer... that will stop the ecu from cutting the boost.
You seemed to have already done all the usual problem areas.
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You seemed to have already done all the usual problem areas.
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#8
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check all of the boost hoses for cracks or splits, check you have not over filled the oil. Definalty sounds like its overboosting. maybee be a loose actuactor rod or knackered diaprham?
Andy
Andy
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What he prob means is its hard to diagnose the fault without being in the car. Sounds like fuel cut your experiencing. Do a search on here for fuel cut and that sould help you out
Last edited by GrantyBoy; 17 November 2004 at 04:49 PM. Reason: spelling
#13
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Hi,
I think what Delboy was getting at is, it may be worth checking if the ecu has been modified.
look inside the casing for any evidence of an extra circuit board fitted or piggyback ecu wired into the standard one.
I think what Delboy was getting at is, it may be worth checking if the ecu has been modified.
look inside the casing for any evidence of an extra circuit board fitted or piggyback ecu wired into the standard one.
#15
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Check bottom hose from boost control solenoid. the one that returns to the main air intake expansion box.
There should be a brass restrictor inside, with I think a 1.25mm bore.
Alot of Jap cars come in with these removed, as an attempt to achieve more boost. Some get away with it, but a decat normally highlights the problem due to the quicker spool-up.
There should be a brass restrictor inside, with I think a 1.25mm bore.
Alot of Jap cars come in with these removed, as an attempt to achieve more boost. Some get away with it, but a decat normally highlights the problem due to the quicker spool-up.
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