Shes being a little b*tch - ideas please

[Meatball]

Ive recently switched back from running a twin plenum set up to a single 72mm throttle, the twin was fine and it made good power over the single throttle but i never really got on with the pedal feel and throttle response.
Since swithching back to the single im having all kinds of running issues .

Last week i finished putting it back together..started it up..sounded great idling at 1000rpm nice solid AFR at 14..blip of the throttle picked up nicely again solid AFR..excellent i thought, i took it down the road and it was hesitating and trying to stall. I checked the throttle pot which i suspected was the cause as the wiring had been repaired also after a few suggestions on here tested it and yes it was missing on the track. So i brought a new throttle pot thinking it will be only a matter of plug and play it wasent

I now cant even get an idle above 600rpm without fully un screwing the throttle screw the fuellings at 11AFR if i build up the gas its spluttering all over the place?

Im using megasquirt btw (ive also reset the throttle position in the settings )


Can anyone throw me some ideas to whats going on.

Thanks

[Meatball]

[spend]

Most maps are pretty sensitive to the curve generated by the TPS, change it and the TPS curve changes - not just a linear line you can calibrate with 2 points, as most assume...

[rigga]

Genuine tps or copy ?

[Johno]

You've probably done thid and I'm not familiar with the MS set up, but with the Emerald before any set up work I go into the system to make sure the system recognises the throttle movement/TP so that it recognises the voltage track and then adjust the settings if needed to ensure it recognises a closed throttle and when fully open with a small margin for both.

[Meatball]

spend said:

Most maps are pretty sensitive to the curve generated by the TPS, change it and the TPS curve changes - not just a linear line you can calibrate with 2 points, as most assume...

Good point but wouldnt i still be able to get a fairly steady base idle considering the the butterflies closed? its also difficult to lean the fuel out at idle?

rigga said:

Genuine tps or copy ?

Im assuming it genuine, i brought it via ebay from a landrover specialist, it came in a land rover box.
The unit i brought is the round conector which i cut to join to the existing loom, i cant see this as being the problem

Johno said:

You've probably done thid and I'm not familiar with the MS set up, but with the Emerald before any set up work I go into the system to make sure the system recognises the throttle movement/TP so that it recognises the voltage track and then adjust the settings if needed to ensure it recognises a closed throttle and when fully open with a small margin for both.

Yes mate its all recalibrated


Its doing my bloody head in, im going around in circles

Thanks for the input chaps, keep it coming