ecu diagnostic check rb25

Discuss the RB20, RB25 and RB26 series engines.
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lilskyline240
Posts: 1887
Joined: Fri Oct 14, 2005 9:55 am
Car: 90 240sx w/ rb30det

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i bought an ecu from a guy on zilvia and its the self diagnostic check one. I opened the ecu when i got it and to my surprise there isnt a red light anywhere that i can see!! there is the small dial to rotate with a screwdriver, then the space next to it for the light but there isnt one there. is this right?


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