I just completed a full rebuild on my CD4E tranny. After installing…

I would definitely try to get the codes out of the computer so we know what direction to take. You didn't replace the TSS sensor did you? I am not sure if the Mazda uses the Ford eeciv system. If so you can do a self test on it with the check engine light. The procedure is outlined below.

The test connector is located under the hood of the vehicle. The STI connector is the the single wire connector.

How To Run The Key On Engine Off Self-Test

DO

• Verify that the vehicle has been properly prepared.
• Start engine and run until it reaches normal operating temperature.
• Turn engine off and wait 10 seconds.
• Activate Self-Test.
  • Super Star II Tester: Latch the center button in the down position.
  • Analog VOM: Jumper STI to SIG RTN at the DLC and STI connectors.
  • Malfunction Indicator Lamp (MIL): Jumper STI to SIG RTN at the DLC and STI connectors. DTCs will be flashed on the Malfunction Indicator Lamp (MIL).
  • Scan Tool: 1) Enter vehicle selection. 2) Enter KOEO Self-Test.
• Place ignition key in the ON position.
• Record all Diagnostic Trouble Codes (DTCs) displayed.

DON'T

• Depress throttle during Key On Engine Off Self-Test.

Key On Engine Off Self-Test Special Notes:

• Continuous Memory Diagnostic Trouble Codes (DTCs) recorded in this step will be used for diagnosis after a PASS code 111 is received in both the Key On Engine Off and the Engine Running Self-Tests.
• Deviation from this procedure may cause the output of false DTCs.
• On all vehicles with a 4.9L engine, the clutch must be depressed during the Key On Engine Off Self-Test.

How To Run The Key On Engine Off Self-Test

DO

• Verify that the vehicle has been properly prepared.
• Start engine and run until it reaches normal operating temperature.
• Turn engine off and wait 10 seconds.
• Activate Self-Test.
  • Super Star II Tester: Latch the center button in the down position.
  • Analog VOM: Jumper STI to SIG RTN at the DLC and STI connectors.
  • Malfunction Indicator Lamp (MIL): Jumper STI to SIG RTN at the DLC and STI connectors. DTCs will be flashed on the Malfunction Indicator Lamp (MIL).
  • Scan Tool: 1) Enter vehicle selection. 2) Enter KOEO Self-Test.
• Place ignition key in the ON position.
• Record all Diagnostic Trouble Codes (DTCs) displayed.

DON'T

• Depress throttle during Key On Engine Off Self-Test.

Engine Running Self-Test Special Notes:

• On vehicles equipped with the Brake On/Off (BOO) circuit, the brake pedal MUST be depressed and released AFTER the ID code.
• On vehicles equipped with the Power Steering Pressure (PSP) switch or sensor, within 1 to 2 seconds after the ID code, the steering wheel must be turned at least one-half turn and released.
• On vehicles equipped with electronic overdrive transmission, the Transmission Control Switch (TCS) must be cycled after the ID code.
• The Dynamic Response code is a single pulse (or a 10 code on the Super Star II Tester) that occurs 6-20 seconds after the engine running identification code. (See Code Output Format in this section.)
• When/if the Dynamic Response code occurs, perform a brief wide open throttle.

How To Run Engine Running Self-Test

DO

• Deactivate Self-Test.
• Start and run engine until it reaches normal operating temperature.
• Turn engine off, wait 10 seconds.
• Activate Self-Test.
• Start engine.
• After the ID code, depress and release the brake pedal if appropriate. See Special Note on previous page.
• After the ID code, within 1 to 2 seconds, turn the steering wheel at least one-half turn and then release it, if appropriate. See Special Notes above.
• If a Dynamic Response Code occurs, perform a brief wide-open throttle (WOT).
• Record all Diagnostic Trouble Codes (DTCs) displayed.

DON'T

• Depress the throttle unless a Dynamic Response code is displayed.

Self-Test with Malfunction Indicator Lamp (MIL)

During Self-Test, a DTC is reported by the Malfunction Indicator Lamp (MIL). It will flash the "CHECK ENGINE" or "SERVICE ENGINE SOON" light on the dash panel (Figure 10). A single-digit number of three will be reported by three flashes.

However, a DTC is represented by a two-digit or three-digit number, such as 2-3 or three digit. As a result, the Self-Test DTC of 2-3 will appear on the MIL as two flashes, then, after a two-second pause, the MIL will flash three times.

The Continuous Memory DTCs are separated from the Key On Engine Off DTCs by a six-second delay, a single half-second flash, and another six-second delay.

You are welcome. Good luck with it.

Thanks,

Tim

It sounds very reasonable, you probably found the issue. I hope this fixes it for you.

Thanks,

Tim