Hook n ladder 1 Posted September 8, 2013 Share Posted September 8, 2013 My 98 Ch 613 , E7 keeps showing a low oil pressure sensor code. The sensor was replaced about 2 months ago but the code shows up about twice a week. The oil pressure gauge has always showed good pressure. The funny thing is I used to get the orange malfunction light and the red engine shut down light but now im only getting the red engine shut down light. The orange one isnt burned out, it still comes on when the ignition is turned on (engine off).Anyway, the engine shutdown wouldn't be on long enough to shut down the motor. So I took it to the independent shop that I use, they specialize in Macks only, they had a few ideas......could be wiring, may be the ecm, probably not the new sensor. They gave me a loaner ECM to use. Haven't had the code yet but only put about 60 miles on the truck.They're leaning towards a bad ECM but, they want to make sure before I buy a new one. Good Mack guys with some history behind them. One started at Chicago Mack at 33rd and the Dan Ryan. You older Chicago guys will remember, right behind the old Comiskey Park scoreboard.So my questions are these: Has anyone had a similar problem? If the ECM is bad do I get one from the dealer (ouch) or try something like this www.ecmking.com? (Just found that today.) And what are talking from the dealer $1000? $1500? I cant call them it's Saturday night.Thanks for your help. Quote Link to comment Share on other sites More sharing options...
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