Hello all,

Just wanted to share a weird thing that happened to me and I wonder if youguys have any explanations on this.

I recently purchased a used pettit unlimitted ECU that was taken out of a 93 FD from Florida.

When I installed it the car started fine and idle was even more stable and lower than with my stock ECU.

The problem was with boost: I had a rock solid 0.5 kg/cm² of boost on both turbo, I even don't know if the secondary ever started!

Checked everything and finally decided to put my stock ECU back on, and everything was back to normal with a 0.9-0.5-0.7 boost pattern (I have boost peaks on the primary due to open intake, DP and catback).

The ECU is not a fake (I checked, and you can actually see pictures on my FS thread).

Any idea of what happened?

By the way, it's for sale if anyone is interested: 375$, price I paid for incl. the shipping cost I paid for.

Thanks in advance for your inputs

 

I've never had any problems with Pettit unlimited ECU's


Weird indeed ..

 

Did you buy them used? US ECU on Euro cars?

 

Used, bought on ebay and via some forums

 

All right. Really weird then... I'd like to test it on a US spec FD. I'll asked a pal here who owes one, we'll see...

Thanks anyway for your experience.

 

dont forget to post the results here, i'm realy interested becaus i own JDM FD and your post made me curious about pettit ecu fitting non USDM machine

 

I'll do.

But if you have a JDM it should be safe for you to buy a used JDM remapped ECU from RE-Amemiya of Knightsports for instance.
N3A7 code.

Here I assume it is because my ECU is a N3B8 which is the european version, but I hear people that have installed US version on Euro cars w/o problem, so I'm a little lost...

 

I had a Euro spec ECU N3B7 (IIRC) in my N3A1 US FD and I could not feel/see any difference. After swapping ECU's I did have some boost problems due to bad connections on the ECU. Check that again !

 

I checked connections several times with the same problem, put the stock one back on and everything was back to normal.

I recently installed a jdm knightsport 4beat and it works great!

 

There is a diffrence between US spec and Euro Spec ECU's just so u know. Not sure what the diffrence is.

I know US cars has more emission stuff to it.

But a freind had a similar problem due to a US car that got a Euro harness. And used the US ecu, and had similiar boost problems. Got a Euro ECU and everything worked fine.

JT