Engine revs erratically when throttled then doesnt rev then jumps around low power. Im getting code P1693 P1698 P0122 P1475
Ive replaced the APPS sensor reset and calabrated the APPS to the ECM, tested the complete wiring harness, checked fuel pressure (good) still nothing! I need all the help i can get!

 

Any modifications to the truck?

 

No sir. It had an edge tuner on it at one time but the guy i bought it from removed it. It has ddp performance stickers under the hood but not sure what that could be. Ive only owned the truck for a few months.

 

Cleared the codes, tried again, and rechecked the codes? You could be looking at some old codes.

Wouldn't hurt to disconnect the batteries overnight and try again.

 

Ive done that made sure they cleared as soon as i start the truck and touch the throttle they come back.

 

Here is a bit of a diagnostics to try:

DTC P1475: AUXILIARY 5 VOLT OUTPUT TOO HIGH

Auxiliary 5-volt output circuit is monitored with ignition on engine off, and with engine running. DTC may set if voltage on 5-volt sensor supply circuit exceeds 5.7 volts for 5 seconds.

Possible Causes

5-volt Supply Circuit Shorted To Battery Voltage
Wiring Harness Or Connector
Broken, Bent Or Pushed Out Terminals
ECM
Testing

Turn engine off. Disconnect MAP sensor harness connector. MAP sensor is located on driver's side rear corner of cylinder head. Check for poor connection/terminal contact at MAP sensor harness connector. Repair as necessary. Start engine and allow engine to idle. Using DVOM (multimeter), measure voltage between ground and terminal No. 1 (Orange wire) on MAP sensor harness connector. If voltage is 5.2 volts or less, replace and program ECM. See appropriate REMOVAL, OVERHAUL & INSTALLATION article. If voltage is greater than 5.2 volts, repair short to voltage on Orange wire between MAP sensor and ECM. ECM is located on driver's side of engine, just in front of fuel transfer pump and contains a 50-pin connector.

Shut engine off. Turn ignition on with engine off. Using DVOM monitor MAP sensor voltage while wiggling wiring harness and connectors between MAP sensor and ECM. MAP sensor is located on driver's side rear corner of cylinder head. ECM is located on driver's side of engine, just in front of fuel transfer pump and contains a 50-pin connector. If MAP sensor voltage does not change while wiggling wiring harness and connectors, go to next step. If MAP sensor voltage changes while wiggling harness and/or connectors, repair wiring or connectors as necessary.

Problem is intermittent. Inspect MAP sensor harness connector and ECM harness connector for corroded, pushed out or damaged terminals. Inspect wiring harness and connectors between MAP sensor and ECM for chafed, pierced or partially broken wires. If terminals are not corroded, pushed out or damaged and wiring is okay, check for technical service bulletins that may apply. If terminals are corroded, pushed out or damaged, or wiring is damaged, repair as necessary.

Something to try at least.

 

Ill give that a shot. Thank you ill let you know what i find.

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I unhooked the batteries over night cleared computer. Test orange wire on map sensor and got 4.97 volts. Still getting the p0122 p1475