I put a new transmission in my 1987 2nd gen. When i had the exaughst off i decided to hollow out my catalytic converter. after installing the new tranny the car will start up but unless i keep the throtle going it will die immedietly. The car drives fine once i start moving and can cruise in 3rd 4th and 5th gear below three thousand rmp but at slow speeds i have to keep it around 4 thousand rmp. Anyone heard of this. I think it might be because of not enough backpressure for the rotars. but dont know for sure.

 

no..i had gutted my cat on my old turbo II and it got a lil louder and the fumes where awful but it should not affect your idle like that..

 

got any ideas why it would not have an idle. could a tranny wire be crossed that would cause it to have no idle

 

check your vacuum hoses maybe you pop`d off a hose of a censor,check your air flow meter make sure its connected,i don't think it has to do with the tranny.

 

87 N/A needs some kind of cat for backpressure.

TII needs no cat but will boost creep right away.

 

thanks i didnt know that it neded a cat although i suspected that backpressure was a problem so we tried starting it with me holding my hands over the exhaust and same thing happend thats what tricked me i guess we will try a new cat