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1989 Chevrolet S10 Fuel Lines

2. Once everything was marked, I removed the fuel lines, IAC valve (idle air control), and TPS (throttle position sensor) electrical connections, along with the four bolts holding the TBI unit to the manifold.
1989 Chevrolet S-10 Tune-Up - Maintenance With a Shot of Whoop Ass

 2. Once everything was marked, I removed the fuel lines, IAC valve (idle air control), and TPS (throttle position sensor) electrical connections, along with the four bolts holding the TBI unit to the manifold.  View Related Article

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