tach goes crazy after 3500rpm then engine dies

[wolski420a]

ok im trying to tune my car i have a keydiver chip in the ecu my mods are 720cc injectors walbro255hp, afpr, 20g turbo, full engne build, fmic, full exhaust.

So im trying to tune it with my safc2 but when i rev it up to 3500 or around there it goes crazy and dies like it lossed spark or something i checked grounds and all connection cant think of anything else thanks.

 

[stevo911]

Is this only when you WOT? If its only with full throttle I would check ECU for leakage. If it is constantly I would check firing order and plug wires.

 

[rush2252]

I would do some readups on the SAFC install make sure its connectied correctly. And read up on tuning. Wiring up and SAFC and adjusting things isnt the smartest thing unless you have some experience with tuning.


Kolby

 

[92awddsm]

Test and/or replace the power transistor.

 

[wolski420a]

ok i found out i fried my transitor got a new one today works perfect thanks everyone