I'm like a week from selling my boosted car and this happens. Car drives fine, did a final log after a fresh tune to make sure everything is good to go. Sits for a week and now it won't start. I get cranking but no fuel. Can no longer connect to the ECU either. Also I notice that when you crank and stop normally you hear the car kinda reset and the fuel pump primes again, this no longer happens. This ecu before had some corrosion and we had to solder a wire to get the serial port back and running. It's been about 6 months since that was done.

Already tried disconnecting the battery. Called up AEM and they weren't much help for diagnosing it.

If anyone has a 1052 PM or call me 361-249-6301 asap. Need to be running by friday and in the meantime I'm going to verify I"m getting power to the ecu and recheck the ground.

 

Have a friend with a working turbo setup and AEM. Want to try connecting my ECU up to his car and just try to connect with my laptop. Say my ECU if fried is there anyway it could damage his components. I'm thinking no, but he's worried to the point he doesn't want to do it. I already looked over my bored and nothing is damaged that I could see.

 

Try running a ground wire from the AEM ecu body to chassis ground. You can utilize any of the 8 screws used for securing the side plates of the AEM ecu.

 

Thanks I will indeed try this.

 

I run mine with the AEM EMS not grounded to the chassis. I have a 5 foot extension harness and it often times is on carpet.

 

make sure car battery has a good charge. aem ems is picky about low voltage.

 

that's the first thing i'd do. Get the battery charged!

 

I will charge it tonight to rule that out. Tried grounding it and no change. I'm thinking I'm screwed.

 

I just put in a new 1052 I bought for $906 and I was able to get the car running. Here is the crazy part, I can't start the car with the AEM serial gauge connecting. I think the F_N serial gauge fried the last one, which would kind of make sense. I'm going to redo the wiring on it as the last owner prolly grounded it to a power wire for all I know.

I wouldn't care if my modifry was working, but it's a nightmare all on it's own and I haven't had time to send it in for repairs.

 

Hmmmm, if you are suspecting the AEM is fried then plug the original
Honda ECU back. If it works, then you know the AEM is dead.