Author Topic: FC Commander has killed my car?? Please help  (Read 833 times)

Offline luckyNot

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FC Commander has killed my car?? Please help
« on: July 28, 2014, 08:28:53 PM »
Hi,

I have been looking at some reliability mods and concluded that a second hand Apexi Commander would be a cost effective and generally useful tool. I am jinxed with cars and still know very little about my FD, so I was amazed when I plugged it in and the thing lit up, gave me some options, from which I chose \'Monitor\' (not wishing to change anything), I got the stats up - great. My luck was in. Now for a test drive....FAIL

I now have two problems:
1. My car will not turn over more than a few times without stalling
2. I am getting a clicking/shorting noise from my alternator

This cannot be coincidence but I thought the Commander simply monitored, could it have reset the map? There is nothing in the manual that suggests this may occur. I have had the car 7 years now and never had such an issue

Any advice or tests I can do? I have unplugged the commander and tried to start the car, without success

Offline steve garbutt

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FC Commander has killed my car?? Please help
« Reply #1 on: July 28, 2014, 08:57:48 PM »
first thing to try is plug your old ecu back in and take it for a drive.
Tact is the knack of making a point without making an enemy.
Steve@mazdarotaryclub.com


Offline luckyNot

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FC Commander has killed my car?? Please help
« Reply #2 on: July 28, 2014, 09:19:19 PM »
Hey Steve,

Thanks for the quick reply. I have not changed my ECU, I have always had a Power FC. All I have done is plug a Commander in to the existing Power FC ECU. I have now unplugged the Commander and still cannot keep my car turning over - although it does just about start.
I took it for a run yesterday so it is possible something went (alternator?) on the way home and it is nothing to do with the Commander, but this is some coincidence..

Offline luckyNot

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FC Commander has killed my car?? Please help
« Reply #3 on: July 28, 2014, 09:47:19 PM »
..but wait.. you may be my lucky charm Steve!

Just tried starting again, same clicking from alternator, again failed to stay ticking over, repeated, repeated, then no ticking noise and she starts, so this looks like it may not be Commander related.

Can anyone confirm that plugging a Commander in to an Apexi FC and viewing only in monitor mode, cannot break or reset anything? This will help me trouble shoot.

The noise, combined with the frequency at which I recharge my car makes me think that perhaps it is time for a new alternator..any thoughts anyone?

Offline Bone

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FC Commander has killed my car?? Please help
« Reply #4 on: July 28, 2014, 10:54:55 PM »
It has nothing to do with the commander. Carry on looking into the alternator, battery, etc.

Offline boosted

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FC Commander has killed my car?? Please help
« Reply #5 on: July 29, 2014, 05:23:50 AM »
Start with the basics...battery terminals tight?  Have you got a multimeter to see if your getting 14.4v at the battery terminals when running.
When you plugged the commander in have not disturbed anything ?
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Offline Dragun

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FC Commander has killed my car?? Please help
« Reply #6 on: July 29, 2014, 04:33:55 PM »
Could be one of those freak things that by plugging it in, the slight voltage change has disturbed something. The commander is just to monitor you can\'t affect anything on the power fc. Check your voltages as mentioned, also your grounds and clean and tight, and make sure the clicking isn\'t from a relay. If it is, look for the related fuse in that circuit, it\'s quite possible ones blown but the terminal barely touching which can cause intermittent problem ( I had this with my 12v constant issue on the fd). Good luck.
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Offline luckyNot

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FC Commander has killed my car?? Please help
« Reply #7 on: July 29, 2014, 08:54:12 PM »
Thanks everyone for the quick replies.
I have been unable to reproduce the problem and now have the car running fine with the Commander plugged in.
I will post an update if the problem occurs again and I fix it.

Next.. it is time to research what my Commander should read if all is good..

Offline boosted

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FC Commander has killed my car?? Please help
« Reply #8 on: July 29, 2014, 09:01:51 PM »
Thing is when i had mine thing was permanetely on my lap...monitor mode boost and coolant temp!   More boost higher coolant temp....thing made me paranoid ! And quickly realised the coolant temp gauge in car was highly inaccurate ! Research led me to the fact its non linear! Have a play and stick in the glove box!
92 FD rx7 Twins 13.5psi.  EX Track car
EAT SLEEP ROTOR REPEAT.

Offline luckyNot

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FC Commander has killed my car?? Please help
« Reply #9 on: July 29, 2014, 09:14:29 PM »
LOL, thanks for the warning!

Offline Arnie_O

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FC Commander has killed my car?? Please help
« Reply #10 on: July 30, 2014, 08:57:14 AM »
Hi buddy, are you having to recharge your battery you say?
Are you sure it\'s not a dead battery causing the problem?
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Offline alexgtr

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FC Commander has killed my car?? Please help
« Reply #11 on: October 27, 2014, 01:23:06 PM »
That clicking sounds like a dead battery to me.

Offline JohnC

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FC Commander has killed my car?? Please help
« Reply #12 on: October 27, 2014, 04:02:10 PM »
Quote from: alexgtr;883644
That clicking sounds like a dead battery to me.


Just what I was going to say. But then realised it\'s a 3 month old thread :2Rolleyes