BlownChevySS

iTrader: (1)

My two active codes are:

p0200-Injector Circuit Cylinder Malfunction
p0300-Random/Multiple Cylinder Misfire Detected

Other Codes Not Ran are:

p0125-Insuff. Engine Coolant Temp For Closed dunno.gif
p0131,p0132,p0133,p0134,p0135- O2S Bank1 Sensor 1, Low Valtage; High Voltage; Slow Response; No Activity; Heater Circuit Malfunction (Respectively)
p0151,p0152,p0153,p0154,p0155- O2S Bank2 Sensor 1, " "
p0171-Bank1 Fuel Trim Too Lean
p0172-Bank1 Fuel Trim Rich
p0174-Bank2 Fuel Trim Too Lean
p0175-Bank2 Fuel Trim Rich
p0327-Knock Sensor 1 Circuit, Low Input
P0332-Knock Sensor 2 Circuit, Low Input
p0442-EVAP Control System, Small Leak
p0446-EVAP Control System Vent Control Circuit Malfunction
p0455-EVAP Control System, Gross Leak
p0496-EVAP System High Purge Flow
p0506-Idle Control System System, RPMs Lower Than Expected
p0507-Idle Control System System, RPMs Higher Than Expected
p0530-A/C Refrigerant Pressure Sensor Circuit Malfunction
p0567-Cruise Control Resume Signal Malfunction
p0568-Cruise Control Set Signal Malfunction
p0713-TFT Sensor Circuit, High Input
p0740-TCC Circuit Malfunction
p0741-TCC Circuit, Performance or Stuck Off
p0742-TCC Circuit, Stuck On
p0751-Shift Solenoid A, Performance or Stuck Off
p0752-Shift Solenoid A, Stuck On
p0756-Shift Solenoid B, Performance or Stuck Off
p00757-Shift Solenoid B, Stuck On
p0895-Trans Component Slipping
p1111-IAT Sensor Circuit, Intermittent High
p1112-IAT Sensor Circuit, Intermittent Low
p1114-ECT Sensor Circuit Intermittent Low Voltage
p11150-ECT Sensor Circuit Intermittent High Voltage
p1574-Brake Pedal Position Switch
p1810-Pressure Switch Manifold
p1875-4WD Low Switch Circuit


I think some of these codes are due to me trying to start it when the battery hardly had juice, but others are an obvious problem. Now, I have to figure out how to check the EVAP system, where the hell the TCC solenoid is, figure out why it's misfiring when my STFT are 0% on both banks (IDK LTFT for sure because I haven't driven the truck around long enough but they read 0%). O2S 1 on both banks read ~50mv and sensor 2 which are useless and not tuned out read ~440mv. And for the trans codes, I didn't have any of these codes show before I rebuilt the motor and didn't even pull the block out or separate them. The trans was rebuilt back a few months before the motor dumped out on me though, but I had no problems with the trans. I have seen the cruise control codes and brake pedal position codes before, but never had any problem with braking and the CC worked fine

So with her running like caca, I know I have some problems, but this isn't my first rodeo guys. I have built motors before, and didn't have any of these issues when I took the blower off and went back to stock either. I'm pissed, frustrated, tired, and my luck has seemed to have gotten worse over the past few years, so if you guys here can help me out on all this, I will greatly appreciate it.

AKlowriderZ71

iTrader: (22)

My advice: Completely forget about the 2nd long list of codes at this point. Clear the codes and diagnose the mis-fire. Start with an injector balance test, so you can troubleshoot the injector circuit code. Once you know which injector isn't working, you can test the injector and wiring. That will probably fix the P0300 at the same time.

Mrgoodwrench3

This would be a good start. P0300 is a random misfire of any or multiple cylinders. Not necessarily an injector. Most common is a plug or wire problem. Anytime you clear a code you start the entire drive cycle series from the beginning. Many onboard diagnostics are done very quickly. Some have to be done ay certain temperatures, speeds and even at certain fuel tank levels. Only focus on the "current" codes.
TCC solenoid is Torque Converter Clutch Solenoid inside the transmission.
Checking the EVAP system is quite complicated. A scan tool and smoke machine are necessary. Leave this to a pro technician.
Many of these problems sound like a bad ground. Recheck all connections at starter, engine block, battery and any junctions. Clear codes with a FULLY charged battery and drive it.