I have a 2001 7.3 that recently had a throttle position sensor issue I replaced the sensor 4 days ago and my truck ran like new. Until last night I shut my truck off and went to start it up a few seconds later and it would crank continually but wouldn't turn over so I went for the obvious and replaced the cam sensor but that didn't change anything. My scanner is throwing a waste gate fail code. Any ideas?

 

So, what I hear you saying is you have a "Crank, No Start".

You said you have a Scanner. If, it's a Phase 2 Vehicle Media Communications Unit, begin by monitoring the following sensors while cranking the Engine:

a. V-PWR (12V+) 10.5 VDC Minimum.

b. RPM 100 RPM Minimum (0 - CMP Suspect) Spec is 150 - 250 RPM

c. ICP 500 PSI or 3.4 MPAM Minimum

d. ICPv (KOEO) Spec 0.20v - 0.30v

e. ICP Duty Cycle% Spec: 10%-12% at idle, engine at 140F or >
FUEL PW: 1 MS - 6 MS (<1 / >6 IDM Suspect).

f. IVS: 0 volts at idle, 12 volts off idle. PID: IVS (off/on)

Here is what The Book Says..

HARD START/NO START DIAGNOSTICS

**NOTE: A hard start/ No start concern with EOT Temp. Below 60F perform step 10 first. You may wish to plug the block heater in for a few hours and see if starting improves.

Tools: Fuel Filter Cap Removal Tool / Flash Light / Tools Flash Light / White Bond Paper / Stop or Wrist Watch w/Second Hand Sweep / DVOM

Step #1: Visual Engine/Chassis Inspection

a. Fuel

b. Oil

c. HPOP Oil Level (.5" - 1" from top is full)

d. Coolant

e. Electrical

f. Hoses Leaks Check

Tools: Flash Light

Fuel Oil Coolant Electrical Hoses Leaks Check

Tools: White Bond Paper

Step #2 Check for:

a. Contaminates

b. Correct Grade and Viscosity

c. Miles/Hours on oil

d. correct level.

Step #3 Intake/Exhaust Restriction

Tools: Flash Light

a. Inspect air filter and ducts

b. Exhaust system

c. Inspect exhaust back pressure device

Step #4 Sufficient Clean Fuel

Tools: Fuel Filter Cap Removal Tool

a. Check if the WATER IN FUEL lamp has been illuminated.

b. After verifying that there is fuel in the tank, drain a sample from fuel filter housing at key on.

c. Fuel pump should run for 20 seconds at key on

Step #5 Electric Fuel Pump Pressure

Tools: DVOM / Fuel Port Adaptor and Pressure Gauge 0-160 PSIG

a. Verify that the fuel pump has voltage and gnd. present at key on.

b. Measure fuel pressure at the Fuel Bowl Test Port key on.

c. Instrument Spec. 42-45 PSIG min at idle. / WOT Under Load =/> 42 PSIG.

* If pressure fails low, go to step 8c on the Performance side of this sheet to identify cause

Step #6 Perform KOEO On Demand Test

Tools: OBD-II On-Board Diagnostics, Phase 2 Vehicle Media Communications Unit (Scanner)

DTCs set during this test are current faults. Make a note of codes for reference. You, may wish to post them on FTE for further assistance.

Note: IDM DTCs displayed here could be current or historical faults a p1316 code indicates there are DTC's stored in the IDM. A suitable Scan Tool will be required to retrieve them. DO NOT Clear the p1316 DTC until they have been retrieved from the IDM.

Step #7 Retrieve Continuous Trouble Codes

Tools: OBD-II On-Board Diagnostics, Phase 2 Vehicle Media Communications Unit (Scanner)

DTCs retrieved during this test are historical faults. * Note: IDM DTCs are cleared when codes are cleared.

Step #8 KOEO Injector Electrical Self-Test

Tools: Bi-Directional Scan Tool.

a. All injectors will momentarily buzz, then individual injectors will buzz in sequence 1 through 8. IDM DTCs may be transmitted after test is completed.

b. Note: IDM DTCs may be historical if not cleared prior to activating the "Buzz-Test".

Step #9 Data List Monitoring

Tools: OBD-II On-Board Diagnostics, Phase 2 Vehicle Media Communications Unit (Scanner)

1. Select the parameters indicated from the NGS parameter list and monitor while cranking engine.

Parameter/Spec:

a. V PWR / 10.5 volt min (The CMP may fall out of the PCM circuit if voltage falls below 10.5v).

b. RPM / 100-150 RPM minimum

c. ICP / 500 PSI or 3.4mPa min. The ICP should steadily climb during cranking. This indicates a healthy HPOP depending upon how high it climbs.

d. ICPv / 0.25v – 0.30v

e. FUEL PW / 1 mS to 6mS

f. MAP & EBP should be within .5 PSIG

* V PWR -If indicating a low voltage condition, check battery voltage, charging system or power and ground circuits to the PCM. GO TO
PINPOINT TEST A

* RPM -Low RPM could be an indication of starting/ charging system problems, RPM indicated with the engine cranking -could be CMP circuit fault, check for Diagnostic Trouble Codes. GO TO PINPOINT TEST DG

*ICP -A minimum of 500 PSI (3.4 mPa) is required before the injectors are enabled. No or low oil in the reservoir, system leakage, injector O-Rings or faulty IPR could cause pressure loss.

*Go to section 4 step 9c in the PC/ED Manual for a detailed description on how to perform this test. Note: If no RPM signal is received, IPR duty cycle will default to 14% - Monitor when cranking.

*FUEL PW -Even though a 1 to 6 mS FUEL PW is shown, it’s possible the IDM did not receive the signal due to a CI or FDCS circuit fault or
Internal IDM failure.

Step #10 Glow Plug System Operation

Tools: DVOM / Stop or Wrist Watch w/Second Hand Sweep

a. Glow Plug ON time is dependent on oil temperature and altitude. The Glow Plug relay comes on between 1 and 120 sec. and does not come on at all if oil temp is above 131 F.

b. Verify that B+ is being supplied on the large BK/W wire going to the Glow Plug relay.

c. Attach voltmeter leads (I like Aligator Clips) to the glow plug feed terminal (two brown wires or center terminal on the shunt) and the other (GP Side) Lug. When key is "ON" you should read approximately 11.5 vdc +/- .5 vdc when GP Relay is activated. A reading closer to system voltage may indicate a defective GP Solenoid or wiring issue.

d. Using a Bi-Directional Scan Tool and EOT PID’s, verify glow plug "on" time.

e. Turn key to run position, measure voltage ("on “time) (Dependent on oil temperature and altitude) Relay on time Spec. Measurement 1 to
120 seconds B +

f. Note: Wait to Start Lamp "on" time (1 -10 sec.) is independent from Glow Plug "on" time

g. Glow Plug Resistance

h. Remove both 9 pin connectors from valve covers • Measure each Glow Plug resistance to Bat. Ground. Measure engine harness resistance to relay. .1 to 2 ohms

i. Glow Plug Connector to relay 0 to 1 ohms

FRONT
#2 #1
#4 #3
#6 #5
#8 #7

*Add 5 seconds to glow plug on time when above 7000 feet in altitude, but not to exceed 120 seconds.