hi, I'm dealing with a acceleration problem a time ago, After a lot of work change MAP sensor and remove the complete wire harness and bench test it all point to a faulty ECU. I don't have any chance for borrow a ECU so I need to buy one.

I need to be sure. The problem is the car idle perfect all day long NO CEL, but a soon as press the gas the wideband goes completely to lean and the engine sputters and chokes and die if I left the gas press.

I find the problem at MAP plug 4.98v at Yell/Red but 3.52v at Red/Green. Perform the same test at the ECU and get the same results. So I'm getting 3.52v at d17 direct at ECU pin.

My question is if I'm getting 5v at d19 and the rest of the sensors there are no chance for a faulty ground or power source issue? (right). This is a faulty ECU.