Hello,

I'm going to get the EMS within the month and I had a question regarding the dealership and the EMS. If I took my car to the dealership to get an Oil Change and for some reason they wanted to clear the service codes on my car and hooked up their diagnostic tool, what would happen? Would their's clear everything in the EMS or would it just come up with an Error? What if they tried to put a code through, would anything happen then?

I mean I know I could just put the stock ECU back it but w/ 272's I don't think she'll idle good enough to make it there.

 

No check engine lights (you can program them as warning lights, shift lights, etc.) , so scan tools won't work. This can be both a good and a bad thing. But, as far as oil changes, no worries.

 

Well if scan tools won't work and I develop a problem, let say a miss fire for example, how would I know that?

 

I would ask how you're planning to get inspected?

 

I did try to plug a datalogger to the OBD2 port. No response from the EMS. So maybe pulling code from the port will get the same result?

 

Thats a good question too. With the AEM EMS and 272's is it possible to pass NJ emissions with a cat?

 

The only thing that won't work is a OBD-2 emmissions test. Otherwise your fine. The datalogger and a good mechanic will tell you a lot more than an OBD code.

 

Do NJ emmissions tests do the OBD-II diagnosic and if so how am I gonna pass it with EMS and 272's?

 

To avoid problems why dont u just remove it when you have to have service to inspection , when does the car have to be re-inspected 4 years?

 

PA Inspection is every year, along with our new Emmissions test.
We have a gas cap pressure test and a visual engine compartment check.
So running an EMS gives you no problems.
As for NJ, I have no idea.

Some states have secondary options for vehicles unable to take an emmissions test through an OBD2 port.

 

Pitbull: Yeah it get inpected in another 4 years. I was planning on just putting the stocker back in but I'm not sure if it could hold the idle with 272's. I can't go sputting into inspection.

 

I was wondering the same thing myself. I also am thinking about getting an AEM EMS, but worry about the inspection and warranty aspect of it. I know it is just a plug and play ECU, but the 3.5 map bar sensor will also be installed.

If I were to take the AEM EMS out, and put the stock ECU back in, will I have to remove the 3.5 bar sensor as well? Or won't it matter?

Just wondering if the stock ECU will try to read from that sensor instead of the stock one??

Anyone have any ideas?

 

You have the choice of either running EMS with MAF (Mass Air Flow) or speed density.

If you run EMS with speed density conversion, you will need to reinstalled the MAF sensor back. The stock ECU will only take MAF reading. As for the MAP & AIT sensor, you can leave the sensor on the car without connection. Some wiring rearrangement will be needed.

If you running EMS and using MAF, you just need to swap the stock ECU back.

 

Hooptie157 you can always get ur ecu flashed.

 

Scott, Brian does have an ECU Flash, but the Dynoflash