9 replies to this topic

[mdlimy]

Stupid freaking car, as if having to redo my entire timing setup for megasquirt wasnt a big enough pain in the ass now my car decided to do this.

Turn the ign on all the lights on the cluster come on as normal, wait about 3 seconds and i hear my megasquirt relays and my ABS all click(turning off) and all the lights on the cluster disapear except the service light. Ignition switch tested good and is putting out at all the wires.

Keep in mind i have no ECUs, this thing worked flawlessly until tonight when i turned my ign on it did this, i did not unplug anything, the car was working then it simply wasnt.

Is there a main relay somewhere that controls main power? the red relay in the box (i think its fuel pump) kills all power to the cluster when removed, i pulled the case off it and manually engaged/disengaged it and when engaged it does the same thing (ign powers on for 3 seconds then shuts off)

Gurus please chime in, this is the last thing i need right now

tia
robbie



edit: fyi obviously the battery has a full charge.
When the power cuts off it is a very sharp cut, just as if a relay was cutting it off, ive checked all grounds, weird thing is it just started happening out of the blue.

[HtownTurboBrick]

Is it just dying or is it sputtering and dying? Does it crank up right away afterward and die again or does it fight you? Fuel pump relay failure?

[mdlimy]

HtownTurboBrick, on 09 February 2010 - 04:02 AM, said:

Is it just dying or is it sputtering and dying? Does it crank up right away afterward and die again or does it fight you? Fuel pump relay failure?

forgot to mention, the car will still crank and try to fire, i would assume it would start and run if my settings were correct but due to the fucking stupid retarted time this problem occured i have incorrect timing settings on my ecu and i cannot burn the correct settings because i have no constant power to my megasquirt!

But all that is beside the point to a certain extent, something is cutting power while the ignition is on after a few seconds.

[mdlimy]

ugggg anyone else got any ideas?

[Ipd]

Head under the dash and look closely at relays 105, 106, 107 and see if they are burned, failing, etc...

[mdlimy]

Ipd - Lucky, on 09 February 2010 - 07:33 PM, said:

Head under the dash and look closely at relays 105, 106, 107 and see if they are burned, failing, etc...

was planning on going under the dash during lunch here in a few minutes, iirc 105, 106, and 107 are in the relay box under the hood, they are over load relays correct?

[mdlimy]

tempermental whore...its working again i did nothing to fix it either.

[cr854r]

so you are using alot of the stock wiring? and relays?

[cr854r]

next time its messed up get a fox an hound an see if you can trace a short

[mdlimy]

cr854r, on 09 February 2010 - 11:03 PM, said:

next time its messed up get a fox an hound an see if you can trace a short

yea i do need to pick up a fox&hound, i am using all the stock wiring and relays except for the Engine harness and ecus.