Hi guys, seems like my car has been lacking power even in full boost @ 15 psi ... Even my gf told me about it ! The engine has 9000 kms on it and was frreshly rebuilt wih all oem parts. The engine is showing very healthy compression numbers @ 170 psi accross the board. So far I changed cap,rotor, plugs (running 7 heat range atm) and wires (ngk stuff). Running an hks bov, manual turbo controller and upgarded rewired fuel pump. No vaccum or boost leaks were found. When I am iin WOT my afr goes down to 11.2, is this to low ? I also noticed my timing rises too high 30s low 40s as I accelerate ... Hope I gave enough info to help me diagnose something out !
Big lack of power !
- Thread starter goshko
- Start date
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pulsarboby
Guest
is the car achieving the max set boost?
does it just feel as though its holding back throughout the rev range or just topend, or intermittently missing as you put your foot down?
does it just feel as though its holding back throughout the rev range or just topend, or intermittently missing as you put your foot down?
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pulsarboby
Guest
well my foremost thought would be a dodgy knock sensor as that will give those exact symptoms
i would change it for a known good one
i would change it for a known good one
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pulsarboby
Guest
no it should increase but that does sound a lot to me especially at a mere 1 bar of boost
swap that knock sensor and see what happens then
swap that knock sensor and see what happens then
red reading
Active Member
Could be cam timing.
Fire & skill
Vintage member
Excellent news! 8)
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pulsarboby
Guest
glad it sorted the prob
as said by ed....does not always appear on knock map but is a major cause of power loss at wot when everything else appears to be ok.
weve had loads of cars in with same thing, swap the sensor and all is good again
as said by ed....does not always appear on knock map but is a major cause of power loss at wot when everything else appears to be ok.
weve had loads of cars in with same thing, swap the sensor and all is good again