Hi all. I recently brought a 96 Stagea WGC34. I was under the impression that it was a rb25de as it stated on the ad and on the vin plate too. I got it home to find out it was only a rb20de in it. The check engine light is on, Ive read the ecu and it comes up with 55-no fault. Im pretty sure its a 25de loom, what would make the engine check light stay on?