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1990 Toyota Pickup still not work with new ECU

Tiny
KIRENDA
  • MEMBER
  • 1990 TOYOTA PICKUP
Computer problem
1990 Toyota Pickup 6 cyl Four Wheel Drive Manual

So I baught a truck that wasnt running, and there is a 4-runner engine in it and the mechanic got it going but then it quit. So I baught a new ECU computer thinking thats what it was and still nothing. And when I plugged in the ECU I turned the key and the flashers went on at a rapid paced and the headlights turned on. What else could cause the truck not to work if the computer isnt the problem. Please just give me idea of what it can be. Im thinking maybe a bad connection.
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Thursday, September 2nd, 2010 AT 10:05 PM

6 Replies

Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
New ecu may need to be reflashed, but before you spend money on that, does this thing have an aftermarket security alarm? For somereason they always haunt vehicles.
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Thursday, September 2nd, 2010 AT 10:17 PM
Tiny
KIRENDA
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  • 5 POSTS
Will the after market alarm not let the truck start though?
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Friday, September 3rd, 2010 AT 10:13 AM
Tiny
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So the alarm system was taken out already. What else could it be then.
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Friday, September 3rd, 2010 AT 1:47 PM
Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Is this cranking over but not starting, or is it not cranking?
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Saturday, September 4th, 2010 AT 1:29 PM
Tiny
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Yes it is cranking there is nothing wrong with the starter. And even when the key is not on the headlights turn on and the blinkers.
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Sunday, September 5th, 2010 AT 4:19 PM
Tiny
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But there is no spark when I crank it over. So I thougt maybe a ground wire.
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Sunday, September 5th, 2010 AT 4:20 PM

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