AC Out of Service
04-16-19, 08:29 AM
#1
Eric Seven
Thread Starter
AC Out of Service
Hey
I installed the PFC recently, and when learning the idle, I noticed my AC wasn't working.
When I push it, the light inside the AC switch doesn't light up.
So, I checked the AC fuse (in the fuse box in the engine bay) and it's OK. Then I checked the AC relay (in the nose of the engine bay) and it 'seems' OK too. I say 'seems' because the relay is working, I can hear it, but the resistance is a bit high though : 4 ohms so I'm not really sure. I tested with another good relay (the gas pump) and the AC didn't work again, but the engine being off, I'm not sure if it's a good test.
I think I will check the AC compressor now, or maybe there is another fuse or relay I forgot that may be in cause ?
I installed the PFC recently, and when learning the idle, I noticed my AC wasn't working.
When I push it, the light inside the AC switch doesn't light up.
So, I checked the AC fuse (in the fuse box in the engine bay) and it's OK. Then I checked the AC relay (in the nose of the engine bay) and it 'seems' OK too. I say 'seems' because the relay is working, I can hear it, but the resistance is a bit high though : 4 ohms so I'm not really sure. I tested with another good relay (the gas pump) and the AC didn't work again, but the engine being off, I'm not sure if it's a good test.
I think I will check the AC compressor now, or maybe there is another fuse or relay I forgot that may be in cause ?
Last edited by tomatoto; 04-17-19 at 02:37 AM.
04-16-19, 08:31 AM
#2
RX-7 Bad Ass
iTrader: (55)
Swap the stock ECU back in and see if the AC works. If so, do some research on the PowerFC AC fix. This is a common problem with the PowerFC.
Dale
Dale
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tomatoto (04-16-19)
04-16-19, 08:34 AM
#3
Eric Seven
Thread Starter
Oh ! I didn't even think about the ECU being the cause.
I'll do it and post the result here
Thanks Dale
I'll do it and post the result here
Thanks Dale
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tomatoto (04-16-19)
04-17-19, 11:10 AM
#5
Eye In The Sky
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Join Date: Feb 2001
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I had my AC push switch go bad on my 92 FD when returning home from 2011 Deals Gap RX7 meet.
Had to re-push it once in a while. to make it reset. Purchased the parts from a wrecked FD from a member on the forum.
Had to re-push it once in a while. to make it reset. Purchased the parts from a wrecked FD from a member on the forum.
04-17-19, 03:53 PM
#6
Eric Seven
Thread Starter
So I swapped the stock ECU back in, but unfortunately the AC switch didn't light up...
I checked the cigar fuse, it looked ok but I swapped it with another 15amps in good condition (the sunroof one, since I don't have a sunroof) but again, AC switch still doesn't work.
I will check the actual switch and/or the compressor later.
Actually it's no big deal, because I wanted to remove the AC. (I already removed the condenser and the canister)
It's just that I wanted to complete the pfc idle learning with AC on for 10 minutes, but I guess it will be ok only with the idle+rear defrost.
I checked the cigar fuse, it looked ok but I swapped it with another 15amps in good condition (the sunroof one, since I don't have a sunroof) but again, AC switch still doesn't work.
I will check the actual switch and/or the compressor later.
Actually it's no big deal, because I wanted to remove the AC. (I already removed the condenser and the canister)
It's just that I wanted to complete the pfc idle learning with AC on for 10 minutes, but I guess it will be ok only with the idle+rear defrost.
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