Guys im getting my P72 OBD1 chipped to tune on Crome, i have asked but i want to confirm. To go back to oem stock settings its just a matter of flipping a switch on the J0 or J1 jumper correct. I can leave the P28 chip in the ziff socket and put the stock injectors back in and call it a day....


thanks

 

bump

 

cut the jumper from j1 and you go back to stock ecu

 

x2

 

I would think with Closed Loop enabled (assuming you still have a primary oxygen sensor), you should be able to pass emissions without a problem.

This is assuming you are still running through a catalyst, with a functioning primary oxygen sensor. If you do not have either of these, removing the jumper from J1 will not help you situation, unfortunately...

 

thanks guys, no i plan on going back to stock b/c im going to be running 1000cc injectors so im keeping stock injectors and cat for smog reasons.