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[bobby-gg]

OK, here is the situation.

I’ve recently installed a 16v from a 1995 5 (Japan) Vitara, complete with the wiring loom and ECU (57B3) into my Samurai

Whilst I’m happy with the overall performance gains, I’m not happy with it’s lack of bottom end, a perfect example of this is a road near my house which I use a lot, rolling up to the junction in second gear, check to see nothing is coming and pull out still in second, the car just trundles along until it creeps up to 2500 rpm, then bang – away it goes, basically it doesn’t pull below 2500rpm.

My Sammy is also a 1995 with TBI, so I already had HP fuel pump and VSS so I had no issues there, and I’ve also fitted a janspeed performance manifold so the EGR is no longer used, I’ve left the plug off the ERG solenoid and I’ve no carbon canister so that solenoid is unplugged too.

New plugs, dizzy cap rotor arm and leads have been fitted along with the fuel filter, and tonight I’ve tested the intake system for leaks using easy start spray over it with no leaks found.

I’ve just removed the ISC to confirm that it’s operating and not blocked and the throttle body looks good too but I’ll clean it and fit a new gasket whilst it’s off.

I think it’s running slightly lean until it hits the magic 2k5 rpm and then it’s like a rocket but this ain’t any good in offroad situation where I need the low down power!

Oh, and if I short the diagnosis connecter I get code 12!

Any ideas where to go next?

Thanks,

Rob.