Can't fire up. Buzzing from the relay, lamps blinkin- HELP
01-11-2007, 10:54 PM
Post: #41
 
These cars are known to have problems with the "circuit opening relay" which provides power to the fuel pump, based on inputs from the air flow meter and the ECU, so there are about five or six possible ways that connections to that relay can fail. The fuel pump test connector bypasses some of them to power the relay directly. This is a relay hidden up behind the glove box, and there have been many posts on club4ag.com about the relay buzzing and needing to be changed, etc. (Don't go looking there now, club4ag is offline possibly for a few weeks.)

If a relay is buzzing it only does that for one of two reasons, it is not getting enough power to hold the contact, or the relay coil itself has burned out (rare). With the circuit opening relay, you'd never be able to check out why it was buzzing without the schematic to trace out all the leads to both coils in it.

The igniters, spark plug wires, coils, distributor, all have no direct connection to that relay.

Original owner, 1985 Toyota Corolla GT-S in the US of A. Will trade for a Cadillac-Gage V150 or a Ford GT44.
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Messages In This Thread
[] - Ivan141 - 01-02-2007, 02:03 PM
[] - mrgud - 01-02-2007, 08:42 PM
[] - Ivan141 - 01-03-2007, 12:44 AM
[] - Red - 01-03-2007, 05:59 AM
[] - mrgud - 01-03-2007, 11:26 AM
[] - Red - 01-03-2007, 07:13 PM
[] - Knudsen - 01-03-2007, 07:33 PM
[] - delange - 01-03-2007, 10:31 PM
[] - meshin - 01-04-2007, 01:42 PM
[] - mrgud - 01-08-2007, 12:23 AM
[] - meshin - 01-08-2007, 02:18 AM
[] - Ivan141 - 01-08-2007, 07:08 PM
[] - Red - 01-08-2007, 09:37 PM
[] - Knudsen - 01-08-2007, 10:57 PM
[] - Ivan141 - 01-08-2007, 11:01 PM
[] - Knudsen - 01-08-2007, 11:07 PM
[] - Red - 01-08-2007, 11:17 PM
[] - Knudsen - 01-08-2007, 11:22 PM
[] - Red - 01-09-2007, 12:03 AM
[] - mrgud - 01-10-2007, 11:47 AM
[] - Red - 01-10-2007, 04:18 PM
[] - mrgud - 01-10-2007, 04:38 PM
[] - Ivan141 - 01-10-2007, 05:33 PM
[] - Red - 01-10-2007, 05:36 PM
[] - Red - 01-10-2007, 06:08 PM
[] - mrgud - 01-10-2007, 06:20 PM
[] - Ivan141 - 01-10-2007, 09:55 PM
[] - Red - 01-10-2007, 10:22 PM
[] - Ivan141 - 01-10-2007, 10:43 PM
[] - mrgud - 01-11-2007, 04:10 PM
[] - Mux213 - 01-11-2007, 04:47 PM
[] - Red - 01-11-2007, 04:58 PM
[] - meshin - 01-11-2007, 05:55 PM
[] - Ivan141 - 01-11-2007, 07:21 PM
[] - Red - 01-11-2007, 09:20 PM
[] - meshin - 01-11-2007, 09:33 PM
[] - Red - 01-11-2007, 10:26 PM
[] - El_Camino - 01-11-2007, 10:44 PM
[] - Ivan141 - 01-11-2007, 10:51 PM
[] - Red - 01-11-2007 10:54 PM
[] - Red - 01-11-2007, 11:01 PM
[] - meshin - 01-12-2007, 12:49 AM
[] - Ivan141 - 01-12-2007, 05:44 PM
[] - Red - 01-12-2007, 07:10 PM
[] - mrgud - 01-13-2007, 05:06 AM
[] - ZaX - 01-13-2007, 11:46 AM
[] - Mux213 - 01-13-2007, 11:56 AM
[] - banpei - 01-13-2007, 01:26 PM
[] - Rio_Cyber - 01-13-2007, 06:38 PM
[] - meshin - 01-15-2007, 01:09 AM
[] - mrgud - 01-15-2007, 05:46 PM
[] - banpei - 01-15-2007, 06:30 PM
[] - mrgud - 01-16-2007, 03:03 PM
[] - banpei - 01-16-2007, 06:32 PM
[] - mrgud - 01-19-2007, 01:32 PM
[] - Mux213 - 01-19-2007, 01:38 PM
[] - mrgud - 01-19-2007, 02:07 PM
[] - Apolan - 01-19-2007, 04:46 PM
[] - meshin - 01-21-2007, 03:21 PM
[] - mrgud - 01-21-2007, 04:59 PM

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