TFI issue? Best way to test?
#1
TFI issue? Best way to test?
Total newb question, but I want to test my TFI module, and read some posts about checking resistance values.
Do I need to remove it to make it easier, or test in on the car (motor off)?
I've got a mid to part throttle "miss" that only happens when the motors fully warmed up, and driving it EASY. Otherwise, the WOT response is perfect, as well as the idle.
Do I need to remove it to make it easier, or test in on the car (motor off)?
I've got a mid to part throttle "miss" that only happens when the motors fully warmed up, and driving it EASY. Otherwise, the WOT response is perfect, as well as the idle.
#3
RE: TFI issue? Best way to test?
ORIGINAL: primetime5.0
you can take it to autozone and have it tested, I had a similar problem it turned out to be the o2's
you can take it to autozone and have it tested, I had a similar problem it turned out to be the o2's
#4
RE: TFI issue? Best way to test?
A = Ground
B = PIP Power, Profile Ignition Pickup Power. Powers the Hall Sensor in conjunction with terminal A .
C = PIP IN, Ignition signal picked up via the Hall sensor sent to the TFI module.
1 = PIP, Profile Ignition Pickup. PIP signals the EEC of the crankshaft position.
2 = SPOUT, Spark Output Signal from the EEC module. This is how EEC controls your timing.
3 = START, Battery voltage input with ignition switch in start position.
4 = TFI PWR, Battery voltage input with ignition switch in run position.
5 = TACH (IDM), Tachometer, Ignition Diagnostic Monitor, Switched output to ignition coil.
6 = IGN GND, Ground. The following is a comparison made between two modules, one with 100k miles and a relatively brand new module (A2A). PINS EXPECTED VALUES A1A(100kmiles usage) A2A (10miles usage) % diff
NOTE: 14.26kohms = 14,260ohms
A to C > 500ohms 14.26kohm14.15kohm -0.77%
B to C < 2,000ohms 1.112kohm 1.115kohm +0.27%
B to 4< 200ohms 84.7ohm 86.1ohm +1.65%
A to 6< 2ohms 0.0ohm 0.0ohm0.0%
C to 1< 200ohms 101.2ohm100.8ohm -0.40%
[IMG]local://upfiles/53364/E181DD9140764B0E809397E838762A18.jpg[/IMG]
B = PIP Power, Profile Ignition Pickup Power. Powers the Hall Sensor in conjunction with terminal A .
C = PIP IN, Ignition signal picked up via the Hall sensor sent to the TFI module.
1 = PIP, Profile Ignition Pickup. PIP signals the EEC of the crankshaft position.
2 = SPOUT, Spark Output Signal from the EEC module. This is how EEC controls your timing.
3 = START, Battery voltage input with ignition switch in start position.
4 = TFI PWR, Battery voltage input with ignition switch in run position.
5 = TACH (IDM), Tachometer, Ignition Diagnostic Monitor, Switched output to ignition coil.
6 = IGN GND, Ground. The following is a comparison made between two modules, one with 100k miles and a relatively brand new module (A2A). PINS EXPECTED VALUES A1A(100kmiles usage) A2A (10miles usage) % diff
NOTE: 14.26kohms = 14,260ohms
A to C > 500ohms 14.26kohm14.15kohm -0.77%
B to C < 2,000ohms 1.112kohm 1.115kohm +0.27%
B to 4< 200ohms 84.7ohm 86.1ohm +1.65%
A to 6< 2ohms 0.0ohm 0.0ohm0.0%
C to 1< 200ohms 101.2ohm100.8ohm -0.40%
[IMG]local://upfiles/53364/E181DD9140764B0E809397E838762A18.jpg[/IMG]
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