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error code 31 and 45

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Old 25 January 2008, 09:19 AM
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san007t
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Default error code 31 and 45

Hi guys, having a bit of trouble with my classic wrx 1994 import. This morning when driving from work to home, my car drove really weird!!! First it wasn't boosting properly , i m having a slight missfire only when idling and erratic idling from 5000 rpm to 1000 prm for couple mins then settles down .
so did the cel/ ecu codes by connecting the black connectors
1. code 31 - throttle position sensor
2. code 45 pressure sensor/pressure exchange seloid valve

And few days ago i changed the boosting pipes( bigger ones from halfords) from the boost solenoid to the trottle body and dump valve...

Is that causing all the trouble ? Should i clean the tps sensor and put back the original pipes ?
Any advice please....

thanks in advance
Old 25 January 2008, 11:46 AM
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anyone ?
Old 25 January 2008, 08:23 PM
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anyone knows a bit about ?? desperate to get it running as normal again
Old 26 January 2008, 09:00 AM
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Try doing an ecu reset, that way if you clear the codes and you still have a problem you can focus attention on that. Its entirely possible that you may have old stored codes aswell.
I had these codes come up on mine a while back, along with 13 others, tbh i dont know what caused it, but i did a reset and they cleared, it may have been the ecu having a paddy about something, and now its ok but the codes are still there. Go for the reset and let us know the result.
Old 27 January 2008, 12:32 AM
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Thanks for the reply mikey2 , well the car drive better now !! dont know what happened but still get that same slight missfire when idling and did check the cel again 2day its giving code 21 and code 45... I will reset the ecu 2morow and see what happens...
Btw the way i have bought a new engine coolant sensor and lamba sensor so will see if it cures my idling problem..
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