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Are ecu and pcm the same things?
If not, where is the pcm located?
If not, where is the pcm located?
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ENFORCER - Midwest Festiva Inc., Iowa
#1 '90 Sport to modified Lx - RollazX
#2 .....Cheesehead
#3 '91 White - Donor Car
#4 .....Montana Project
SOLD----Levistiva for $1500
Bought her back for $450
Now that's darn near priceless!! -
In a nutshell:
ECU= engine control unit (strictly engine)
PCM= power train control module (also controls trans and other functions, etc. depending on the car and model, mostly newer ones).
Festiva does not have a PCM, just an ECUBrian
93L - 5SP, FMS springs, 323 alloys, 1st gen B6, ported head & intake, FMS cam, ported exhaust manifold w/2-1/4" head pipe.
04 Mustang GT, 5SP, CAI, TFS plenum, 70mm TB, catted X, Pypes 304SS cat-back, Hurst Billet+ shifter, SCT/Bama tuned....4.10's & cams coming soon
62 Galaxie 2D sedan project- 428, 3x2V, 4SP, 3.89TLOC
1 wife, 2 kids, 9 dogs, 4 cats......
Not enough time or money for any of them -
I'm talking about that Aspire from the other thread you responded to. I've been fiddling around with it, checking the connections, like you said. In doing so, I jumped a connection and the fan turned on. While reading the wiring diagram, I see that the pcm influences the opening/closing of the circuit that turns the fan on. After all tests conclude that everything is fine, then the pcm is to blame, per the Haynes manual. If so, then I have a spare car with a spare pcm that is just dying to be replaced. Unfortunately, I don't know where it is located, the pcm that is......I know where the car is located...LOL!!.Originally posted by blkfordsedan View PostENFORCER - Midwest Festiva Inc., Iowa
#1 '90 Sport to modified Lx - RollazX
#2 .....Cheesehead
#3 '91 White - Donor Car
#4 .....Montana Project
SOLD----Levistiva for $1500
Bought her back for $450
Now that's darn near priceless!!Comment
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Are you sure?
Actually it probably isnt hard to find , just have to remember which pile of snow its under!
:razz:
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Sorry, didn't make the connection (no pun intended). According to the Haynes, the fan is controlled by a temp sensor, not a thermo-switch like a Festiva. I thought you said you unplugged the thermo-switch and the fan didn't come on..........I'm not sure it's supposed to work like that on an Aspire since it's not a switch that grounds but rather a sensor that works on resistance. Did you check the actual resistance on the coolant temp sensor? I would think if the sensor was bad you would experience other problems and the CEL would come on.Originally posted by Levitan View Post
To answer your question, I believe in this case the PCM is the only computer and controls everything. According to Haynes, it's located behind the instrument panel (dash?) on the passenger's side.Brian
93L - 5SP, FMS springs, 323 alloys, 1st gen B6, ported head & intake, FMS cam, ported exhaust manifold w/2-1/4" head pipe.
04 Mustang GT, 5SP, CAI, TFS plenum, 70mm TB, catted X, Pypes 304SS cat-back, Hurst Billet+ shifter, SCT/Bama tuned....4.10's & cams coming soon
62 Galaxie 2D sedan project- 428, 3x2V, 4SP, 3.89TLOC
1 wife, 2 kids, 9 dogs, 4 cats......
Not enough time or money for any of themComment
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as far as i remember the aspire only has the coolant senor for the gauge. but its been awhile since i had the 1.3Comment
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