The Acura Legend & Acura RL Forum - View Single Post - JDM install update ....and a critical question

KAHruzer · 07-02-08, 05:31 PM

Somewhere, there's an automatic fuel (pump elec) cutoff (required in USA) for accidents. Seldom is this a factor, but have heard of them kicking in unexpectedly at times. Wondered if your ECU perhaps got stuck in that mode. Just thinking out loud here, don't know anything for sure.

As Sam stated, the S3 blink indicates a Code on the TCU.

btw, the 90LS and 89L ECU's would not be interchangeable in automatics. They're different due to the TCU interface to the ECU since the TCU has input from two speed sensors at the transmission (in automatics). But, if they're both manual transmissions, they may be interchangeable. Not sure about that part.

07-02-08, 05:31 PM	#8 (permalink)
KAHruzer Moor Mo*h Join Date: Oct 2003 Location: Soonerville Posts: 1,610 Car 1: 1987 Legend LS Coupe iTrader: (0)	Somewhere, there's an automatic fuel (pump elec) cutoff (required in USA) for accidents. Seldom is this a factor, but have heard of them kicking in unexpectedly at times. Wondered if your ECU perhaps got stuck in that mode. Just thinking out loud here, don't know anything for sure. As Sam stated, the S3 blink indicates a Code on the TCU. btw, the 90LS and 89L ECU's would not be interchangeable in automatics. They're different due to the TCU interface to the ECU since the TCU has input from two speed sensors at the transmission (in automatics). But, if they're both manual transmissions, they may be interchangeable. Not sure about that part. __________________ Stock 1987 Legend LS Coupe 180k (11/07)