Difference: E3 and Y7 ECU?
 

I tried doing a search on this (as i have been on everything i've been unsure about over the past few weeks) but i can't search E3 or Y7 as the words are too small.

I Initially had an E3 ECU in my UK 99 Wagon, but now have a PPP ECU. However I'm looking to buy an ECUtek licenced ECU and get it mapped for my specific mods.
Can I get an ECU stamped Y7? What's the difference between this and E3?
Thanks in advance!

Yes you can buy an ecu stamped Y7 and it will fit straight into your 99 car.I went the other way round i chose to keep my E3 from my old 99 car and fit it in my current MY2000 car. The main differences in the 2 ecu's is in the maps.Generally the E3(AE800/801) tends to give a performance gain over the Y7 as it does not run as rich as the later AE802 unit(Y7).Being as the older versions already run rich,the extra fuel will reduce power

I did not post this earlier as i am currently bidding on a Y7 ecu, which I want if i ever decide to take my car back to std,hope you were not looking on winning the one on ebay :cry::

Hi,

Just seen this on a similar thread - should help with info required,

http://www2.ecutek.com.au/ecu_original.htm


I have an AE802 ECU from my '00 saloon spare...

To be fair in std form there is clearly an advantage over using an E3 over a Y7,but when the 2 ecu's are mapped via ecutec the performance is pretty similar from both ecu's ,however the E3 seems to hold torque slightly higher in the rev range than the Y7.

Ok thanks a lot.
I'm basically just trying to save on the licence and not bidding on anything on Ebay. I'm after getting an already ECUtek mapped ECU just to save the licensing money and i will keep my E3 spare to revert to if i ever decide to put the car back to standard.

I have an Andy Forrest Mapped EcuTek ECU at home. Im almost certain its a Y7. Drop me a PM if you are interested.

interesting so you are saying the same map on a e3 and y7 ecu will produce slightly different torque curves?

I was told by my mapper that the E3 is slightly more capable of holding torque higher in the rev range than the Y7,dispite the fact that both cars can be delivering identical amounts of torque.

I know it's a old post but any chance anybody has e3 or y7 already remapped in middle of doing 99 uk wagon but on a budget any help in rite direction would be appreciated