Fool the ECM?
02-16-2014, 04:52 PM
#1
Pro
Thread Starter
Fool the ECM?
The air pump relay on my 92 reads 65 ohms across the coil.
Couldn't I remove the relay and use a 65 ohm 10 watt resistor across the coil terminals to fool the ECM?
*A 10 watt resistor would equate to .83 amps at 12V.
Just wonder if anyone has tried this..
Couldn't I remove the relay and use a 65 ohm 10 watt resistor across the coil terminals to fool the ECM?
*A 10 watt resistor would equate to .83 amps at 12V.
Just wonder if anyone has tried this..
Last edited by mixalive; 02-16-2014 at 04:54 PM.
02-16-2014, 06:44 PM
#2
Advanced
Member Since: May 2010
Posts: 74
Likes: 0
Received 0 Likes
on
0 Posts
I will try to help you, but may I ask, why are you trying to do this?
02-17-2014, 02:08 AM
#3
Race Director
The PCM will set an error code if it doesn't see current flow when it commands the relay to turn on.
A 62 ohm or 68 ohm resistor will be easier to find. 10W would be a good choice. Note that it will get pretty hot, so make sure it's isolated from things that can melt or burn (like your finger).
It appears he is removing his A.I.R. pump.
A 62 ohm or 68 ohm resistor will be easier to find. 10W would be a good choice. Note that it will get pretty hot, so make sure it's isolated from things that can melt or burn (like your finger).
It appears he is removing his A.I.R. pump.
02-17-2014, 06:47 AM
#4
Instructor
Member Since: Feb 2014
Location: Lakeland FL
Posts: 139
Likes: 0
Received 0 Likes
on
0 Posts
I would give it a shot. The worst that would happen is you get a Check Engine Lite.
If you do get a CEL you can then see what the conditions have to be to set that code and go from there.
If you do get a CEL you can then see what the conditions have to be to set that code and go from there.
02-17-2014, 11:25 PM
#7
Drifting
Leave the relay in. Take out the pump and all the diverter valves and stuff. Its easy to delete all that up to '96. Then its a bit tricky.
