91vettecks
New member
adHi Friends,
Well, i have a big problem here. Some weeks ago my Corvette 91 Aut 350 LT5 starts a high idle rpm ( 3188 rpm) and bad throttle reponse. I bought a Actron Scanner and try to connect with the ECM but i can´t stablish a connection. I consulted the GM repair manual and the 1° step was check some circuits and everything was ok. The 2° step was change the ECM but i used the same MEM-CAL and i can´t connect the scanner with the new ECM. The next step would be change the MEM-CAL but before anything more, i would like to be sure that the MEM-CAL is the problem. I change the IAC and check the IAT and CTS. The sensors are ok and i don´t find any leak in the manifold. What can i do to try to solve this problem? Thanks for any help that you can give me!
Regards.
Clemente K. Sutto
Well, i have a big problem here. Some weeks ago my Corvette 91 Aut 350 LT5 starts a high idle rpm ( 3188 rpm) and bad throttle reponse. I bought a Actron Scanner and try to connect with the ECM but i can´t stablish a connection. I consulted the GM repair manual and the 1° step was check some circuits and everything was ok. The 2° step was change the ECM but i used the same MEM-CAL and i can´t connect the scanner with the new ECM. The next step would be change the MEM-CAL but before anything more, i would like to be sure that the MEM-CAL is the problem. I change the IAC and check the IAT and CTS. The sensors are ok and i don´t find any leak in the manifold. What can i do to try to solve this problem? Thanks for any help that you can give me!
Regards.
Clemente K. Sutto