Question about 1994 Ford Crown Victoria

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I have 2 codes I get on my 1994 crown victoria. 998 and 122. I changed the TPS but I still get the code. As for the 998 I have no idea.

At first I had a 172 code on O2 sensor, so I changed it. I was losing power going uphill and it runs/idles bad until it gets warmed up and then it runs better.

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  • Ford Master
  • 3,218 Answers

Code 998 refers to VPWR solenoid and transmission. Can,t help with anymore info

Posted on Apr 05, 2015

  • Joey Tardy Apr 05, 2015

    Paul what is VPWR not familiar with that term. I will leave a tip tomorrow after I have had a chance to check what you told me.

  • paulmacintyre
    paulmacintyre Apr 06, 2015

    Vehicle power supply to one of the transmission solenoids. I researched this code through ny shop computer and it is very vague. I have never experienced this code in all my years repairing cars. You may need a breakout box to find this problem as the ECM on these older vehicles are like dinosaurs. Hope this helps

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  • Ford Master
  • 531 Answers

122 is TP low (possibly grounded or open circuit) - TPS
that suggested it's not really the sensor itself is bad, but a wiring problem!

gotta trace and make sure the ground circuit and or wiring to that sensor is not broken

as for the other 3 digit code, no idea as well. reset the ecu/ecm and read the flashes again


Ford OBD Trouble Codes

Posted on Apr 05, 2015

  • Joey Tardy Apr 05, 2015

    Can I leave a tip tomorrow afternoon after I have had a chance to check what you told me?

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