Some help from the ECU gurus

[claymore]

......

[CRXer]

Im no guru,but since noone else is here,i'll have a go.

There is no pinout as such,I think most stock ecu's are done on fuel cut only,not ignition cut.So its done internally in the programming,cutting the injectors off when the ecu detects a certain engine speed thru the crank position sensor.

To trick the CKP sensor with a false reading,ie false engine speed,would prob cause all sorts of CKF & CYP sensor discrepancies,CEL's,ecu compensations & the like.

To cut the ICM output with a relay would also cause CEL's,tacho needle to drop,any other ramifications i dont know.

To cut the injector 12V feeds with a relay or the injector grounds with a 4pole relay,would give fuel system codes i should imagine, as it would conflict the TPS reading.Plus u would need a rpm reading device with an output to the relay to set the 5-6-7krpm limit(whatever it would be) for the shift, plus the man hours to design & install.
For all this work,u could almost have yourself a good aftermarket ecu with the full throttle shift already on board(just need to wire in the clutch switch).
U would also get launch control,full tunability,datalogging,etc & its all contained in one neat little box.

I hear the full throttle shift gives some nice effects though,if only i could get around to mounting a clutch switch.

Maybe there is an aftermarket piggyback device already out there somewhere,that will do this,but i should imagine it would still be a good chunk out of the price of the new ecu.

[ProECU]

Hoe-$a$a are currently the only ones who have cracked the K-series code.... others are VERY close!

[CUL8R]

see if u can get in contact with bowzer (trader in the more traders section) he really knows his stuff about ecus. maybe even pornstar can help

[ProECU]

like I said....

Bao will point you towards me, and pornstar doesnt know his face from his ass when it comes to stock ecu's.

your best bet is CRXer's suggestion

[CRXer]

Ahhh....i see your dilemma now,

I should read more carefully.....

Probably is no aftermarket ecu options for a jazz.........atm.

[mj3610]

Bao will point you towards me, and pornstar doesnt know his face from his ass when it comes to stock ecu's.

ROFLMAOOOOOOAAHAHHAHAHAHHAHAHAHHAHAHAHHAHA

[saxman]

afaik, it's controlled internally... there isn't a fuel cut wire or anything like that