code was 10-PCM P0751 H C
Thats the current code that came up I tried to look it up.
Buy those numbers don't show up?
Any info would be great. The car feels like the torque converter isn't locking up. It takes long to shift out of first and when driving 65mph rpms were
way to high for 3.42 gears. Like 3000! Any Info?
Thanks Jimmy O :smash:

 

DTC P0751 1-2 Shift Solenoid Valve Performance
CIRCUIT DESCRIPTION
The 1-2 Shift Solenoid (SS) valve controls the fluid flow acting on the 1-2 and 3-4 shift valves. The 1-2 SS valve is a normally-open exhaust valve that is used with the 2-3 SS valve, in order to allow four different shifting combinations.

When the PCM detects a 1-1-4-4 or a 2-2-3-3 shift pattern, depending on the state of the mechanical failure, then DTC P0751 sets. DTC P0751 is a type A DTC.

CONDITIONS FOR RUNNING THE DTC


No TP sensor DTCs P0122 or P0123.
No VSS assembly DTCs P0502 or P0503.
No TCC solenoid valve DTC P0740.
No TCC stuck ON DTC P0742.
No 1-2 SS valve DTC P0753.
No 2-3 SS valve DTC P0758.
No 3-2 SS valve assembly DTC P0785.
No TFP manual valve position switch DTC P1810.
No TCC PWM solenoid valve DTC P1860.
The engine speed is greater than 450 RPM for 5 seconds .
The engine is not in fuel cutoff.
The TP angle is 10-35%.
The TP angle is constant +1-5%.
The gear range is D4.
The transmission fluid temperature is 20-130°C (68-266°F) .
The PCM commands a 1-2, 2-3, and 3-4 shift.
The TCC is commanded ON.
The vehicle speed is greater than 8 km/h (5 mph) .
CONDITIONS FOR SETTING THE DTC
DTC P0751 sets if the following conditions occur three times:


Within 2 seconds , the engine speed in 2nd gear is 80 RPM greater than the last speed in 1st gear.
Within 2 seconds , the engine speed in 3rd gear is 50 RPM less than the last speed in 2nd gear.
Within 2 seconds , the engine speed in 4th gear is 10 RPM greater than the last speed in 3rd gear.
All of the above conditions are met and one of the following conditions occurs:

Condition 1


The speed ratio is 0.95 to 1.2 (speed ratio is engine speed divided by transmission output speed).
The TCC slip speed is200-1000 RPM for 4 seconds .
Condition 2


The speed ratio is 0.65 to 0.8.
The TCC slip speed is -20 to +40 RPM for 4 seconds .
ACTION TAKEN WHEN THE DTC SETS


The PCM illuminates the Malfunction Indicator Lamp (MIL) .
The PCM commands D2 line pressure.
The PCM inhibits 3-2 downshifts if the vehicle speed is greater than 48 km/h (30 mph) .
The PCM freezes shift adapts from being updated.
The PCM records the operating conditions when the Conditions for Setting the DTC are met. The PCM stores this information as Freeze Frame and Failure Records.
The PCM stores DTC P0751 in PCM history.

 

:confused:

 

I'm not sure what you mean?
The info posted was from the service manual.

 

not the info you posted i'm confused jimmy is my nephew and this happened on the way home from funfest , luckly we wern't far from home . i got in and drove it and it felt like the TQ was locking and unlocking . first gear was real sluggish almost slow to get going :confused:

 

How do you check to see what a code means?
How long do they stay in the system?
I JUST checked mine for the first time since i cammed my car and i had a bunch.
I was expecting p0300 but i'm showing like 13 codes "on-file"

 

I reset the DIC to clear the code and chech engine light
came back on. So there is a problem Chuck at FLP
thinks its electrical. Hopefully just a solenoid problem.
Well will see! :smash: :crazy: :confused:
Cars first gear shifts higher than normal and never goes into
overdrive like it stays in third. The rpm's are like I'm going 70mph
when I going 45-50?

 

holy crap, this just happen to me yesterday.....I was going like 70 mph and the rpm's were at 3 g's.......buddy of mine told me my TC was locked up. I just turned off the car for about 2 or 3 minutes and it went away. my code was PO757 = 2-3 shift solenoid performance....

how do we fix it? LS1 edit?