madmanperez, on 11 October 2018 - 04:49 PM, said:
Turbo cary: connections are crimped. Too many opinions crimped vs. soldered. In this instance crimping was the easiest to do. Have never done a TPS reset.
Many will argue that crimped is ok and I'm on the side of solder. Both are ok however I try to view it as what the circuit is designed for. ECU, Air Bag wires, Data communication circuits should all be soldered. Resistance causes skewed sensor readings and faulty codes.
I have seen a number of old distributors for these cars have a oil soaked pick up wires. Is it critical to replace it? Well no but getting fresh wires with non brittle insulation and clean soldered spades installed will help. At the least you can have the peace of mind knowing that the harness which sends RPM info to your ECU is good.
The TPS reset is a critical setup procedure for these cars. Your whole engine operation depends on it having a proper reading. It is easy to do. The only problems come from faulty TPS sensors that can't obtain the correct reading. It should be between 0.48-0.52 volts with the throttle closed, ideal is 0.50 Volts.
There is a mazda TPS replacement kit. If you dont have it, buy it while it is available. Hands down it is a great replacement. Your whole throttle issue could be because the TPS has a dead spot or isn't calibrated right. Check all your ECU/body grounds as well.