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Help!I got a lower boost and fault code 65
Posted: Fri Oct 26, 2007 4:56 pm
by 小山&
HI
I come from Hong Kong,i see here many profressional people in this web site , everbody can help me?
guestions: My car is 97 Legacy BG5 AT Twin Turbo,no any specail
problem ,but the turbo just boost at 0.5Bar and some
time got a fault code 65 (Vaccum pressure sensor) .
I got a bad idea ! Install boost contorller to solve the
problem ,but i push the throttle fully ,the boost will go
up and down three time ,max just get 0.8 Bar,if i push
1/3 throttle , will stability keep in 0.8 Bar . What
happen in this case (lower boost and fault code 65)?
Posted: Sat Oct 27, 2007 4:46 am
by Dynamic Entry
Welcome to the board!
I do not know the answer to your question, sorry, but someone else may be able to help you.
Posted: Sat Oct 27, 2007 7:34 am
by Arctic Assassian
Seems like you may need a new MAP sensor.
Posted: Sat Oct 27, 2007 8:47 am
by 小山&
Arctic Assassian wrote:Seems like you may need a new MAP sensor.
Today I repeat to see all the board find a semi problem like this,[/url]
http://bbs.legacycentral.org/viewtopic.php?t=33291
[url]it maybbe KNOCK SENSOR crack ,I feel that like ECU going on to the (Safe Mode).I already change the VACCUM PRESSURE SENSOR but no efect ,PRESSURE SENSOR I tested no problem ,I want to test KNOCK SENSOR now.I asked other people said 65code means:
1 VACCUM PRESSURE SENSOR .2 1st turbne change 2nd turbine timing wrong .3th boost lowest
Posted: Sat Oct 27, 2007 9:08 am
by 小山&
Dynamic Entry wrote:Welcome to the board!
I do not know the answer to your question, sorry, but someone else may be able to help you.
Thank You
Posted: Sat Oct 27, 2007 12:54 pm
by 小山&
小山& wrote:Arctic Assassian wrote:Seems like you may need a new MAP sensor.
Today I repeat to see all the board find a semi problem like this,[/url]
http://bbs.legacycentral.org/viewtopic.php?t=33291
[url]it maybbe KNOCK SENSOR crack ,I feel that like ECU going on to the (Safe Mode).I already change the VACCUM PRESSURE SENSOR but no efect ,PRESSURE SENSOR I tested no problem ,I want to test KNOCK SENSOR now.I asked other people said 65code means:
1 VACCUM PRESSURE SENSOR .2 1st turbne change 2nd turbine timing wrong .3th boost lowest
I changed KNOCK SENSOR but as same as undo ,no efect , have any suggest?
Posted: Sun Oct 28, 2007 3:50 am
by beatersubi
Hello and welcome.
I'm not sure if i fully understand your symptoms or problem. But have you checked all of your vacuum lines? I know there are many on a single turbo, and probably twice as many on a twin turbo.
Posted: Sun Oct 28, 2007 5:11 am
by 小山&
beatersubi wrote:Hello and welcome.
I'm not sure if i fully understand your symptoms or problem. But have you checked all of your vacuum lines? I know there are many on a single turbo, and probably twice as many on a twin turbo.
I checked all the vaccum line no wrong input,no vaccum leaks.If I can find the problem, I will report to everbody !Thank.
Posted: Mon Oct 29, 2007 5:38 am
by 94legacy
sounds like the problem might be "in" the ECU. find a good ECU and plug it in and see if the problem gos away.