1UZ-FE AEM V1 cal file - No spark

[Chambers]

Hi all,

I'm working on my AEM V1, I managed to get the fuel injectors to fire, but I cant get anything out of the ignition system. I have attached the cal file for review.

Here are some notes:

The 1UZ has a 0-5v rising edge ignition signal

Two coil outputs Pin B56 and B57, they bypass the AEM transistors (hardware mod)

The two coil outputs need to be changed to run like twin distributed Hondas offset by 90 crank degrees

Cam/Crank timing pattern is the same as the 2jz

The 1UZ uses batch fire for injectors 1&7 2&8 3&5 4&6 using 4 outputs

Pin B58 and B59, IGF1 and IGF2 the AEM shows B58 as NOT USED & B59 LS11 (Available Switched Ground) What is the IGF?


Any help would be appreciated, as information on this out there is very slim...

 

[Radial]

IGF is a "spark generation confirmed" signal to the ECU from the Igniter on JZ ECU's.... guess UZ uses it for the same purpose.

No IGF-signal on a standard toyota ECU = CEL (minimum)

 

[Chambers]

Ok, that is good to know. The UZ and JZ are very similar ECU wise, just about all the I/Os are on the same pins. Thats why I'm using the AEM for the 2JZ-GTE, its been modified for the UZ though "the 6 inverting transistors were removed and two were bypassed for coil outputs 1 and 2" There is a chance that that modification is the issue... I'm almost ready to drop the AEM unit and go MS3...

Thanks.

 

[hvyman]

MS3-PRO. full seq fuel and spark with smart coils.

 

[Chambers]

Yup, I know the capabilities of the MS3. The whole idea behind the AEM was so it would be a PnP system, so I could use the stock ignition system and fuel injectors.