Grid heater issue?
#11
There is a write up on how to check your heater relays too, let me try to find it.
#12
Re: Grid heater issue?
Only time I have ever seen those 2 codes by themselves at the same time has been if its a bad wiring issue or the ECM going south after a smoke switch had been on the truck. Get a volt meter and check your voltage at the Map sensor, should be 5.0 volts with no boost. if its reading higher than 5, change or clean map sensor and recheck.
There is a write up on how to check your heater relays too, let me try to find it.
There is a write up on how to check your heater relays too, let me try to find it.
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#13
nah, wasnt me who told you about the 70 lbs and the code. Factory ECM sets that code to trip at any pressures higher than 25. The reason it doesnt trip on most modded trucks is because people are running boost fooling boxes, aka the juice, TST, ADR etc. These boxes intercept the boost signal from the map before it gets to the ECM and tricks the computer thinking it is only at 18-25(varies depending on the box) when in fact its got much more than that. The factory also sets the ECM to begin cutting back on fuel at 18 psi which is why a boost fooler is needed if you are higher than that in order to hit max power potential.
still looking for that grid heater write up.
still looking for that grid heater write up.
#14
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24 Valve 2nd Gen Dodge Cummins 98.5-02
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