Oxygen sensor

BlackScooby

Petrolheads
Hey all,Could someone help me with this problem?It driving me nuts. Would the oxygen sensor,not working properly,put a car into safe mode and stop the engine revving out to the limit.Mines only revving out to 4500rpm.And is there anything else that could cause this?. If i need to get a dianogistics check where would i get someone in the west?(Galway,Mayo,Roscommon).

Thanks for reading this. :subaru:
 
have you a full decat system put on recently????????

Have you added anything lately as in was it happening since you got it or wat????
 
there is a blue flame exhaust on the car since 12/05. the engine was took out by a previous owner and a very rough job of puttin it back together.there is vacum pipes off and the oxegen sensor [at the drivers side corner] was never connected, any help is appreciated.
 
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