well i just finished my cometic 2mm install as well as my chase bays engine harness install and now my car wont start. the car will start on the oem ecu but wont run on the aem ems. with the aem box i am not getting spark or fuel (the fuel pump does turn on though). i have also checked the battery and its fully charged. does any one have any idea what i should try next.

on a side note the car was tuned on the aem less than a year ago all i did was pull it out of the car and plug it back in.

 

hook your laptop up to it to make sure it will connect, and that you have the map still on the ecu.

 

and also at that time when you are on the ecu, make sure that the batt. voltage is not dropping below i beleave it is 10 volts while cranking, what map sensor are you using.

 

currently im just using the stock map which is what the car was tuned on. ill hook it up to a laptop tomorrow and let you guys know what i find out.

 

if it's never been installed before there's a whole setup procedure where you have to set up the timing, the car will not start without that being done.

 

like i said in my op the car was tuned on this same ems less than a year ago all i did was pull the box out and plug it back in!

 

any other ideas?

 

Did you advance the timing chain when you installed the headgasket?

 

its a 2mm you don't have to.

 

Mine wouldn't start initially w/the AEM either, it would w/the stock ECU but not the AEM. Took it to the tuner, turns out the AEM was bad from the factory. It took them almost 3 weeks to repair it and get it back to me, they wouldn't just give me a new one. Kind of sucked especially since I had just finished my install and couldn't get it to start, makes you start considering all the other possilbilies and spending a lot of time and frustration tracking down something you can't do anything about.