Check Engine and TCS light

There was a TSB on the problem and I have sent it to you with all the procedures. You are not going to like this.

So how is it now? HAVE CODES READ.

EGR valve?

Get a scan done to retrieve for trouble codes and let me know the EXACT code so I can understand what is wrong.

So running better now?

Hi FUNGUY4,

How did you come to the conclusion with such limited information?

What prompted you to replace 02? Flashing llight means emmisions problem but usually a misfire. Check engine light doesn't clear itself. Disconnect battery overnight to clear the codes from the ecm.

Not necessarily all symptoms indicates the same fault. The vehicle was parked and seldom driven. Rodents loves such vehicles and some wires might be missing as they are in the stomach of rodents.

A diagnostic is required to confirm the problem and eliminate changing a good transmission and come up with the same problem after installing a replacement.

What was the trouble code with the original transmission? If it is the same code, you could have a wiring or control problem, or the replacement transmission is bad.

When you bought the transmission online, what was the warranty given for the trnsmission? Get back to them about the problem, a possibility they have to get you another unit.

Here are the diagnostic procedures.

DTC P0730: PROBLEM IN SHIFT CONTROL SYSTEM

NOTE:
†Keep these replacement solenoid valves on hand:

? Shift solenoid valves A, B, and C
? A/T clutch pressure control solenoid valves A and B

1. Check whether the OBD II scan tool indicates another code.

Does the OBD II scan tool indicate another code?

YES - Perform the troubleshooting flowchart for the indicated code(s). Recheck for code P0730 after troubleshooting.

NO - Go to step 2.

NOTE: Do not continue with this troubleshooting until the causes of any other DTCs have been corrected.

2. Measure the 1st, 2nd, 3rd, 4th, and 5th clutch pressure.

Is each clutch pressure within the service limit?

YES - Go to step 3.
NO - Repair the hydraulic system as necessary.

3. Replace the shift solenoid valve B.

4. Replace the shift solenoid valves A and C.

5. Replace the A/T clutch pressure control solenoid valves A and B.

6. Turn the ignition switch OFF, and reset the PCM memory by removing the BACK UP fuse in the passenger's under-dash fuse/relay box for more than 10 seconds.

7. Calibrate the engine idle control system in the PCM, see PCM Idle Learn Procedure, and drive the vehicle at a speed over 12 mph (20 km/h) in 1st, 2nd, 3rd, 4th, and 5th gear in the [D 5 ] position for more than 30 seconds.

8. Recheck for code P0730.

Does the OBD II scan tool indicate code P0730?

YES - Replace the transmission.
NO - The system is OK at this time.

This is something that cannot be helped. When you buy a replacement part, you have to take the risk of the part failing, be it new, used or rebuilt.

The first concern is this code refers to something that could adversely affect emissions. Those are the codes that turn on the Check Engine light. It could have a relatively minor cause, but if it's ignored, it could turn into an expensive repair, especially if the catalytic converter overheats. Also, a totally different problem could develop that could also turn expensive if ignored. You will never know that second problem occurred because the Check Engine light is already on.

The second concern is to detect a problem, there is always a long list of conditions that must be met before a fault code will be set. One of those conditions is certain other codes can't already be set. The Engine Computer compares many sensor readings and operating conditions to each other to figure out when there is a problem. When one fault code is already set, the computer knows it can't rely on that circuit to provide accurate readings, so any tests that need that data to be compared to, will be suspended. A defect can develop and never be detected. Once you have the first problem fixed, the suspended tests will resume, and THAT is when the next problem(s) will be detected. The Check Engine light may turn right back on. Of course you assume the mechanic didn't diagnose or repair the problem correctly, but in fact there was a second problem he had no way of knowing existed.