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Hard fault 998 code 122,327 codes

Tiny
FALLOUT
  • MEMBER
  • 1994 FORD RANGER
  • 4.0L
  • V6
  • 4WD
  • MANUAL
  • 172,000 MILES
Truck runs but rough, it is throwing koeo122 and 327, and koer 122, 327 and 998. I've replaced every sensor including the computer. And every time it's still the same thing (nothing's changed). Can't afford to take it to a mechanic. I need help. Thanks.
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Wednesday, November 13th, 2019 AT 1:21 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Here is the info about these codes. Both of these could cause a rough idle condition but I would start with the EGR feedback code. The Throttle position sensor would more than likely cause issues while driving and not just running issues.

Run through these tests and see what you come up with.
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Thursday, November 14th, 2019 AT 5:09 PM

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