Pulled New Codes Today

[Mountain Main]

I let the engine warm up and turned the key off and disconnected the negative cable to the battery. I came back in ten minuetes and took the car for a drive. I drove it for a half an hour. I even brought the car up to ninty miles an hour. I received no check engine light. I then pulled into my driveway and ran a KOEO Test

I received these codes. Here they are in order

67 Neutral Drive Switch (NDS) circuit open; A/C input high
67 Neutral Drive Switch (NDS) circuit open; A/C input high
22 Map/BP [BARO*] out of Self Test Range
34 In sufficient EGR flow/Excessive exhaust back pressure; or EVP above closed limit (sonic) / PFE sensor voltage high or out-of-range
51 ECT sensor fault or open circuit
53 TP circuit above maximum voltage
54 ACT [IAT*] or VAT sensor fault, circuit open
22 Map/BP [BARO] out of Self Test Range
34 In sufficient EGR flow/Excessive exhaust back pressure; or EVP above closed limit (sonic) / PFE Sensor voltage high or out-of-range
51 ECT sensor faut of open circuit
53 TP circuit above maximum voltage
54 ACT {IAT*] or VAT sensor fault, circuit open

I think I am going to check out the ECT sensor and check for OHMs in the wiring harness.

Any comments thankx

Mountain Main