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| How much current should a Fiero draw with ignition off? (Page 2/2) |
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cvxjet
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MAR 26, 02:54 PM
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I moved my battery up front....but because it is under the spare tire, I have limited access- so I installed a battery disconnect switch- I can switch the battery off easily- just pop the front trunk and twist it. You could install a switch somewhere else, also (Although engine compartment/rear trunk would not be helpful...)
Try pulling fuses for things to see if that stops the drain- and definitely disconnect your HL motors for the time being- even the 2nd-gen ones can develop problems...
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1985 Fiero GT
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MAR 26, 02:55 PM
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| quote | Originally posted by Cliff Pennock:
Loud enough you can hear them easily but not super loud. If I needed to guess, I would say about 5-10 clicks p/s. It sounds a bit when you try to start your car but there isn't enough juice in your battery. You hear it clicking too. Come to think of it, it sounds a lot like that clicking.
I wanted to record the sound on my phone but by the time I had thought of that, the clicking was gone. I know it will return tomorrow since so far, I have heard that sound each time I disconnect the battery for a longer time. |
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Maybe your headlights, I don't know exactly how the gen 2 system works, I would be inclined to think you have a grounding problem, somehow something isn't ground right, and the electricity is flowing through a "sneak path" as described in the ogre's cave, maybe somehow through the starter, making the sound, that would be intermittent as well, so might look for bad grounds
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theogre
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MAR 26, 04:48 PM
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yes, max is ~ 35mA as standby for ECM Radio etc. Often uses Way less then max even w/ aftermarket "radios."
Over that will kill the battery faster, way faster > 1A.
Just 1 194 bulb pulling ~ 0.29A can kill most batteries in a day or three. Remember a Starter Battery is functionally "dead" just ~
11.9v...
Gen2 HL motor system should not kill your battery same reasons as Gen1 but if the module is "bad" then could have similar results.
see cave battery leches & get www.amazon.com/UNI-T-Digita...rement/dp/B00O1Q2HOQ or similar DC amp clamps read lower current draw so no cutting or otherwise disconnecting whatever. ------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave
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olejoedad
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MAR 26, 06:04 PM
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The only ALWAYS ON circuits on a Fiero are
- battery lead to starter motor solenoid
- Alternator
- ECU battery power
- headlight module
- headlight switch
- emergency flasher
- brake light circuit
- courtesy lights
- fuel pump relay/oil pressure switch circuit
- high speed blower relay
- cigar lighter
- radio memory
I hope this helps.
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stevep914
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MAR 26, 06:08 PM
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I had the battery drain go on for awhile, and installed a race style interruptor ( Autozone) on the interior passenger firewall. Shut it off every time I finish driving it. Have not had a problem since.
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Vintage-Nut
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MAR 26, 07:32 PM
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| quote | Cliff Pennock:
That's my problem right there. I lost my trunk keys 2 months ago...... |
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IMHO, 'bite the bullet' and buy the damn fastback trunk lock cylinder you found on eBay!
------------------
Original Owner of a Silver '88 GT
Under 'Production Refurbishment' @ 136k Miles
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Raydar
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MAR 26, 08:49 PM
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My first guess would be the headlight motor(s).
Second would be the fuel pump running. If the oil pressure switch sticks closed, it can run your fuel pump until the battery dies. You can test by unplugging your oil pressure sender. Or pull the fuel pump fuse. Either one should kill the pump, if it's running.
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Cliff Pennock
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MAR 27, 01:49 AM
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| quote | Originally posted by Vintage-Nut:
IMHO, 'bite the bullet' and buy the damn fastback trunk lock cylinder you found on eBay!
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Well, I realized I don't have to. I can simply re-code the trunk lock cylinder with the lock tumblers from the "wrong" lock cylinder I had bought. Just need to find the time to do it (it requires drilling out a few screws since they were badly rusted and apparently had broken off).
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Rodrv6
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MAR 27, 08:40 AM
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You may have a couple of issues, in addition to the possible headlight motor issue, check to make sure the alternator isn't getting warm when the car sits for a bit. I've had a diode go bad and drain the battery overnight. ------------------
Rod Schneider, Ball Ground, Ga.
"You can't have too many toys!"
1988 Fiero GT
1988 Porsche 928S4
1987 Corvette
2016 Mustang EcoBoost
Van's RV-6 airplane
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