I currently have a JWT'd ecu. Would you use an A/F ratio controller on top or completely seperatey, -to be used with a stock ecu?

 

Which setup is recommend/concidered to be best?

 

Also can you tell what voltages your mas is pumping out on one of these? Think mine may be dodgy and buying one of these babies would be a good way to find out ;)

Use the A/F meter on top. The JWT ecu does far more than just air fuel mappings and it's a good place to start from.

 

I assume you want an a/f controller beacuse you have problems after large mods like new cylinders / turbos... Otherwise I wouldn't reccomend getting one. If you have a/f ratio problems with just a few mods, fix the fault to correct the ratios. Try running the ecu a/f ratio test first (o2 sensors), also check the ecu for error codes etc and the temp sensor etc...

 

Jez.