This is the scanner that we use at my shop and never had issues with it. Works great, no complaints and saved us so much money.
https://dieselscanners.com/products/diesel-diagnostic-laptop-scanner-tuner-truck-repair
It sounds like you're doing some solid troubleshooting on your '93 truck. Hard shifting can definitely be linked to issues with RPM signals. Here are some options and insights that might help:
1. Cam Sensor as an RPM Source: The factory cam sensor could potentially provide an RPM signal to the...
1. Common Issues: It's true that valve cover gaskets and turbo lines (both oil and coolant) are common maintenance items for the Cruze. Over time, these parts can wear out, leading to leaks and potential turbo failure.
2. Preventive Maintenance: Replacing the oil and coolant lines as a...