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ECU location

985 Views 5 Replies 5 Participants Last post by  texas12
My 90 4runner: 6cycl. 4wd won't start when the weather is damp. Last winter it did the same thing and when the weather warmed-up it started. A mechanic said it was the computer getting damp. I can't find the darn ECU; where is it located at.
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· 96 3MZ M/T
2,880 Posts
from my understanding it should be in the cab, not too sure where on the 90's but most likey check behind the tape deck, or dash trim. personaly since the ecu is in the cab i dont see how it's getting wet i would say the distrobuter is getting wet. take it off and check for cracks and if it is sealing good to the block, also check and see how the roter is while you have it off.
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