I have Jeep srt-8 with 426 ppp and am getting check engine the code is P0175 system is too rich in bank 1 and 2 .. can any body tell me what i can do with this thing ...
Welcome to the "C" let me do some checking be back soon. So its Bank 2 Sensor 1, What does your A/F guage say and please tell me you have one with your mods I would call Andy at PPP and send them some data loggind along with your A/F reading and I'm sure they can email you a new tune if your running real rich but with your mods that might be tough. If your A/F is good there could be vacuum leak, dirty or bad AIT sensor or something is up with your fuel delivery system that you have.
I took out the supercharge kit and now just the engine but from the past the same thing am getting this code even when I took off the supercharge kit and I got the tune the same thing am getting, I dont know what is the A/R I didnt dyno it , but when their was the supercharge the same thing am getting anf the A/F was very good. can you please tell we what should I check?
I have boost pump and fuel pump inside the tank do you this that what is causing the rich problem? before i install these parts i was doing the same thing, do you think its bad O2sensors and the A/F was 11.8 when I had supercharge tune
I'm sorry there are so many variables as to why this code is showing the only true was to diagnose or resolve is to have a star scanner which you will need to go to the dealer for. Vehicle Issue MIL on | SAE P0172 | SAE P0175 | => Explanation of possible causes for a FUEL SYSTEM RICH CODE.;Prior to replacing parts, please review the explanation below in the recommendation field. System or Component DTC / Error Message;Group 18 - Vehicle Performance / Driveability Recommendation Explanation of possible cause for a FUEL SYSTEM RICH CODE The Fuel System Rich code is set when: Short Term Compensation multiplied by Long Term Adaptive reaches a predetermined value. The actual number varies make model, but in general they will be highly negative when the condition set. Usually either short term or long term will be at -20 % or greater negative percentage. The adaptives become negative when the PCM decreases the injector pulse width in attempt to make the oxygen sensor switch uniformly about the PCM's oxygen sensor goal voltage. This means that the oxygen sensor is producing a voltage that is close to one volt ( 1.0v ) consistently indicating a low oxygen (rich) state in the exhaust. The causes of the oxygen sensor reading a higher voltage usually falls into three main categories: 1) Excessive amount of fuel, 2) Not enough air, or 3) The PCM is being provided with the improper information. THE FOLLOWING IS A GENERIC LIST OF POSSIBLE CAUSES. THE LIST IS PROVIDED AS AN EXAMPLE OF POSSIBILITIES. SOME OF THESE MAY NOT APPLY TO YOUR SPECIFIC VEHICLE. IT IS YOUR RESPONSIBILITY TO DECIDE WHICH COULD APPLY. THIS IS NOT A COMPREHENSIVE LIST : MERELY THE MORE COMMON CAUSES. 1) EXCESSIVE AMOUNT OF FUEL -- there is such an abundance of fuel that there is no left over oxygen in the exhaust after combustion. -- This additional fuel could be caused by any of the following: TOO HIGH OF FUEL PRESSURE WRONG FUEL INJECTOR LEAKING OR WORN INJECTORS LEAKING INJECTOR O-RINGS CONTAMINATED CHARCOAL CANNISTER (liquid fuel) DEFECTIVE PURGE SYSTEM PRESSURE REGULATOR WITH A HOLE IN THE DIAPHRAM (vacuum compensated type ) 2) NOT ENOUGH AIR- For some reason the cylinders are not filling with the proper amount of air. The amount of oxygen in the combustion chamber is low . This condition could be caused by any of the following: CAM TIMING-(including loose timing chain, sheared cam dowel pins, keyways, or skipped teeth) WORN CAM LOBES OTHER VALVETRAIN PROBLEMS RESTRICTED EXHAUST EXCESSIVE EGR FLOW FOR CONDITION - (Be sure to verify that the vacuum hoses to the EGR vacuum transducer are routed correctly. If the vacuum lines are reversed the EGR valve will open and stay open until the engine is shut off.) 3) PCM IS BEING PROVIDED IMPROPER INFORMATION- If the PCM does not receive proper sensor readings it will not deliver the proper injector pulse width for conditions. The following is a list of sensor problems that could cause a fuel system rich code: COOLANT SENSOR CALIBRATION (sensor is reading much colder than the actual engine temperature). OXYGEN SENSOR CIRCUIT PROBLEM- (this includes O2 sensor heater, grounds, signal wire problems, and heater operation. Once the O2 sensor reaches operating temperature the voltage should never exceed 1.02v) MAP SENSOR CALIBRATION--One of the most important readings for testing a MAP sensor is the voltage reading obtained with the DRBIII with the ignition on and the engine off. This voltage reading is important because the PCM uses this for calculating barometric pressure. If the PCM does not "know" the correct air density from the MAP sensor (baro. reading) it will have to drastically change the fuel curve through the adaptives to get the proper response from the oxygen sensor. Below is a chart of key on MAP sensor readings for a given elevation. You should get to know what is normal for your area. Elevation (feet) Baro Reading (in.-hg.) MAP voltage 0 (sea level) 29.92 4.6v 29.67 500 29.42 29.17 1000 28.92 28.67 4.4v 1500 28,42 28.17 2000 27.92 27.67 2500 27.42 4.2v 27.17 3000 26.92 26.67 3500 26.42 26.17 4.0v 4000 25.92 25.67 4500 25.42 25.17 5000 24.92 3.8v VOLTAGE SENSE-- The PCM compensates the injector pulsewidth based upon charging system voltage. The higher the voltage=> the stronger the magnetic field opening the pintle valve in the injector. The PCM compensates for this condition. If the PCM sense a lower voltage than is applied to the injectors the Fuel System Rich Code could also result.Always insure base engine/cam timing is as desinged.
11.8 is not horribly rich but a tad on the rich side but with boosted applications its a safe place to be I'm sorry I'm not much help I would call the guys at PPP and go over it with them or post in their section
So there was a blower involved here? Has this vehicle been tuned on a dyno by a CMR dealer? Thanks Mike
IDK trying to pull detail out of him but a complete list of what he has now and how it is set up would go a long way in helping
no it was for the supercharge but i didnt took it off , but the code was showing when the supercharger kit was on my car
hmmm Ok, I had a similar issue as Abdullah BEFORE CMR tuning. I would get a P0178 code which is Engine Lean. Had gotten it since my engine build and blower. It never caused any issue whatsoever for over a year, so I dismissed it. Yes, I had the Aux injectors and the MSD Boostapump, but I had the code before the MSD. Too the dyno sheets and my Wideband I was not running lean at all. As a matter of fact I was running VERY rich for the last 8 months. Now, since I got my Direct Port CMR tuning from GSM, I no longer throw the P0178 code. And yes, I still have the MSD in, but now I have the larger Blue top injectors. My suggestion is to get your Jeep on a Dyno and get with PPP.
The code is not for the 11.8 at wot. Thats a closed loop code. Who tuned the car? They need to adjust VE tables based off of a datalog that you would provide.
