Ignition Misfire EMU install.

[nabilsx]

Hi Guys,

yesterday I installed an EMU on a 2001 Celica GT-S, I wired injectors (cut), Ignition (cut), TPS Tee, CAM and Crank Tee, IAT Tee, MAS (cut), I connected ignition wiring as per manual for individual ignition on a 4 cylinder, but the car misfired, it starts for a couple of seconds and then dies and sounds wrongs, so I Teed into the ignition wiring and it started normal. what do u think? can I keep the Tee into the ignition wiring and tune timing through CAM and Crank signal? if yes, which Ignition table should I use? also is there anything I should SET in the PARAMETERS SETTING menu about ignition? can't I control timing through CAM and Crank signal?

Thanx
Nabil

[nabilsx]

Guys, I have an update to share with you, on Saturday, we tunned the car and after we were done, I decided to try the ignition again, so I cut the wires and connect to EMU, to my surprise it worked just fine, I was able to manipulate the timing, Adv. and Ret. we made a preliminary ignition map and went for a test drive, OMG car drives so much better and power gains were so noticeable. on sunday tried to start the car and it did not start, checked fault codes and we were back to point 1, where it showed misfire, the same as it did when we first installed EMU. my question is, any idea why it decides to work 1 day and fail another day? do we need to use ignition adapter to connect ignition btn EMU and GT-S? the only thing I am not sure of is the JP8, I am not sure if I set that to 5v or 12v, I should set it to 12v right? the codes i am getting car P1300 and P5400.

thanx guys

[zuoom]

check the EMU chips itself. open it up to have a look to check if the chips are loose.

[wts]

The ZZ engines use the 12V Emanage setting.

Check the serial # on the EMU and the search for posts on the bad series. THere was more than one problem with the earlier units including the aforementioned chip mounted too close to the edge of the PCB.
IIRC, the serial# ended in A or B.