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Bad ECU??? Help!

IronIndian

Well-Known Member
Joined
December 24, 2001
Messages
120
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City, State
Glendale, CA
Year, Model & Trim Level
1991 Mazda Navajo
Hi all,
I'm gettin a no start condition in the 87 B2 :( When I turn the key in the ON position, the CEL does not light up. I tried pulling codes manually under the hood, but to no avail. Also I do not hear the relays clicking when in the ON position. It is getting spark because when I spray starting fluid down the intake, it runs then dies- I'm thinking because the injectors arent firing. Does the ECU controls injector pulse? Sound like a bad ECU or maybe a bad eec relay??? Any is greatly appreciated! I wanna get this thing back in the dirt...

More info: It seems my buddy may have switched the battery cables when trying to jump it (i.e. pos. to neg. and neg. to pos.....what a ________!) Could this fry a ECU? lol
 






ironindian

try hot wiring your fuel relay with a switch. mine did the same thing worked for me
 












Well, yes and no. :D Buddy decided to sell it to the scrapper. Didnt lose any money and saved ourselves a migraine.
 






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