New holland tractor has tripped code F1H. Tried cleaning solenoids and adding short to ground. It causes the tractor to only go as fast as 2 miles an hour and no reverse. What can i do to fix this?

check for bad , broken or loose ground wire --battery- gauges etc

code p 0499 refers to emission evaporative system vent control---circuit high===causes ---wiring short to positive ---EVAP valve
replace the EVAP valve

P0758 Chevrolet P0758 Chevrolet - 2-3 Shift Solenoid Circuit Electrical
Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty 2-3 Shift Solenoid Valve
- 2-3 Shift Solenoid Valve harness or connectors
- 2-3 Shift Solenoid Valve circuit is open or shorted
What does this mean? When is the code detected?
When the Powertrain Control Module (PCM) detects a continuous open, short to ground or short to power in the 2-3 Shift Solenoid (SS) valve circuit, then DTC P0758 sets.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission will not shift gears
P0758 Chevrolet Description
The 2-3 Shift Solenoid (SS) valve controls the fluid flow acting on the 2-3 shift valves. The 2-3 SS valve is a normally-open exhaust valve that is used with the 1-2 SS valve in order to allow four different shifting combinations. The solenoid attaches to the control valve body within the transmission. The Powertrain Control Module (PCM) controls the solenoid by providing the ground path.

Read more: http://engine-codes.com/p0758_chevrolet.html#ixzz3kcwzXFmK

code p0238 refers to manifold absolute pressure (MAP) sensor A TC system --high input===causes --wiring short to positive --MAP sensor---ECM
Replace the sensor (internal fault)
code p0102 refers to mass air flow (MAF) sensor /volume air flow (MAV) sensor --low input ===causes wiring short to ground ---MAF/VAF sensor
again the MAF is implicated as faulty

code po113 refers to intake air temperature (IAT) sensor--circuit malfunction===causes --wiring open circuit/short to positive --wiring short to ground --ground wire defective---IAT sensor---ECM

Now looking at all the codes the most common fault is wiring damaged so pay particular to the condition of the wiring loom --the condition of the connections --clean pins - pins not bent --water in the connections . IT is common that when disconnecting the units that the connection is pulled apart by pulling on the wires .. This check is the cheapest before any money is spent on the rest . Do not clean but replace because if cleaning does not produce a result you still do not know if you cleaned it properly or if it is faulty

(171,172) replace MAF , replace air filter with o.e. type (1130) Check vac. lines and connectors to vac. solenoids
(1320) ignition coil primary failure, if all connections are good, replace all the coils

code p 0753 refers to shift solenoid (SS) A ---electrical===causes --wiring ---shift solenoid ---ECM/TCM
code p 0758 refers to Shift solenoid (SS) B -- electrical===causes -- same as for p 0753
code p 0452 refers to evaporative emission (EVAP) pressure sensor---low input===causes wiring short to ground ---EVAP pressure sensor ---ECM
code p1860 refers to TCC / PWM solenoid circuit breaker
the first 2 are solenoid problems in the transmission
the p1860 is the torque converter clutch solenoid / servo code p 0113refers to intake air temp (IAT) sensor --circuit malfunction===causes--wiring open circuit/ short to positive ---wiring short to ground ---ground wire defective --IAT sensor ---ECM

I am a 24 year ford master tech, and over the years we found the harness in the transmission was the cause and not the solonoid as you described, In rare cases the valve body was clogged back forcing the flow, My first bet is the harness INSIDE the transmission

Trouble Code: P0732 (4.6L V8 VIN W Auto)
Incorrect Second Gear Ratio Print this code data Number of Trips to Set Code: 2
OBD II Monitor Type: CCM Details
Indicators: MIL Details

• CCM Details

Trouble Code Conditions:
Engine started, vehicle operating with 2nd Gear commanded "on", and the PCM detected an incorrect 2nd gear ratio during the test.

Possible Causes:

• 2nd Gear solenoid harness connector not properly seated
  
• 2nd Gear solenoid signal shorted to ground, or open
  
• 2nd Gear solenoid wring harness connector is damaged
  
• 2nd Gear solenoid is damaged or not properly installed
  

Refer to the mechanical section to diagnose transmission concerns


Trouble Code: P0732 (5.4L V8 VIN L Auto)
Incorrect Second Gear Ratio Print this code data
Number of Trips to Set Code: 2
OBD II Monitor Type: CCM Details
Indicators: MIL Details

• CCM Details

Trouble Code Conditions:
Engine started, vehicle operating with 2nd Gear commanded "on", and the PCM detected an incorrect 2nd gear ratio during the test.

Possible Causes:

• 2nd Gear solenoid harness connector not properly seated
  
• 2nd Gear solenoid signal shorted to ground, or open
  
• 2nd Gear solenoid wring harness connector is damaged
  
• 2nd Gear solenoid is damaged or not properly installed
  

Refer to the mechanical section to diagnose transmission concerns.

P0700 (M)
Check Transmission DTC's
This code indicates that the EATX (Transmission controller) has an active fault and has illuminated the MIL via a BUS message. The specific fault must be acquired from the EATX via a DRBIII tool. (Input or Output Speed Sensor failures often cause this code and are a common failure part on WJ Grand Cherokees

P0750
Shift Solenoid circuit.
Note: If code P1767 (Transmission Relay Always On) is also present: Replace transmission solenoid assembly. See note provided. When transmission is in limp mode the relay that provides power to the solenoid group is switched off. This is normal and is designed to provide operation in one gear only. Engineering department suggests to replace transmission solenoid assembly anytime these two trouble codes occur together. See applicable service manual section (21) for solenoid assembly replacement directions. IMPORTANT: When performing this repair always check torque on all valvebody accumulator cover plate screws. Proper torque specification is 70 inch pounds. If any accumulator cover plate screws are damaged or missing replace the valvebody assembly. NOTE: If any other trouble codes are present do not replace solenoid assembly. See test in the applicable Transmission Diagnostic Procedures Manual

P0755
Shift Solenoid B