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13-06-2005, 09:35pm
I'm not an expert on the Busa's systems, but I've had a bit to do with putting a Commodore V6 into a Navara (don't ask why!).
Still, I found that these things are actually easier to trace than most people think. You need the manual and some diagnostic tools, but usually just a multimeter.
According to the manual (and I can send you a copy on a disc) there's a number of parameters measured, that control fuel.
Atmospheric pressure, if it's low the fuel gets reduced. Water temp etc etc. One is listed as Acceleration signal/deceleration signal. You don't have to be enstein to figure out what these are supposed to do! It looks at the throttle opening and the revs to decide what's happening. So that leads to revs and throttle positioner as maybe a culprit. Revs is probably not the problem, but from playing with the throttle positioner on the commodore with a similar problem, that turned out to be the reason. It's a case of measuring the resistance of the resistor at close and open. Or as the manual says, the voltage has to range between 0.2V and 4.8V (close to open).
I'd be looking at that as a starter, then get totally frustrated and end up at the dealer! If you feel comfortable with multimeters and a test globe, you'll crack it OK. Yell out if you want a CD.
Cheers and good luck. <i></i>
Still, I found that these things are actually easier to trace than most people think. You need the manual and some diagnostic tools, but usually just a multimeter.
According to the manual (and I can send you a copy on a disc) there's a number of parameters measured, that control fuel.
Atmospheric pressure, if it's low the fuel gets reduced. Water temp etc etc. One is listed as Acceleration signal/deceleration signal. You don't have to be enstein to figure out what these are supposed to do! It looks at the throttle opening and the revs to decide what's happening. So that leads to revs and throttle positioner as maybe a culprit. Revs is probably not the problem, but from playing with the throttle positioner on the commodore with a similar problem, that turned out to be the reason. It's a case of measuring the resistance of the resistor at close and open. Or as the manual says, the voltage has to range between 0.2V and 4.8V (close to open).
I'd be looking at that as a starter, then get totally frustrated and end up at the dealer! If you feel comfortable with multimeters and a test globe, you'll crack it OK. Yell out if you want a CD.
Cheers and good luck. <i></i>