Question about 1988 Ford F 150
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Posted on Jan 02, 2017
SOURCE: 1988 ford f150 running rough
Might want to change o2 sensor's, If they are not sending the right single its tell the computer to dump fuel. 1988 was using a fuel density system.
(1989 came out with Mass air flow system)
I think it might have a TFI module that's not working right. Located under distributor. Its gray and about 4" long and if equip, you need a 4 or 5.5 mm tool to unbolt it. This was a common thing back in the 80's. Its been so long I can't remember if the 4.9 straight 6 had it or not.
I- Ignition module
Posted on Apr 24, 2009
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Disconnect and remove the TP sensor from beneath the throttle body
View of the throttle position sensor mounting-4.9L, 5.0L and 5.8L MFI engines shown, others similar
Exploded view of the throttle body mounting-5.0L and 5.8L engines
Posted on Mar 06, 2010
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Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle position sensor responds to the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM). In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition
Read more: http://engine-codes.com/p2135_ford.html#ixzz2LBgiF38q
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