I have searched but cant find any help. My car is in limp mode( only can drive when engine is 0 or below boost. There are no faults stored in the ecu. I have replaced the map sensor. I have a single turbo but was running good with this. Standard ecu as the mixtures check out great!!!!.. Help please

 

Reset the ECU and try again. there may not be a CEL but has to be a stored code there when you check if it goes into it again.

tom

 

not all codes light up the check engine light and still can put you in limp mode like badddrx7 said.

Single and stock ecu is dangerours. That's all i'll say.

 

I have rest the ecu numerous times. The japanese model(mine is) do not have a engine check light. They have a heat light for the cat instead. I took it to the local mazda dealer and he hooked it up to there computer but found nothing?.
DONT believe everything people post here.. Have a close look at thier simplified hose diagram. The charge control and charge relief part is ALL wrong. Compare to the "system diagram" page 7 of the fuel and emissions section

 

Which "simplified hose diagram"?

 

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/vac-hose-diagram-wrong-354263/

 

Mmm, yeah ...take a look at his post in this thread:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/modding-allowed-before-ecu-353773/