914Rubber 1.7 L Throttle Position Sensor Circuit Board (5 pin Connector) for Porsche 914 (1972-76)

PMB Performance has been breathing life into Porsche 914s for 20 years, and our nearly two-decade partnership with 914Rubber makes us the world’s leading retailer of their SKUs. From fuel system seals to suspension bushings, we carry more 914Rubber parts than anyone—because we’re as obsessed with your 914’s mid-engine soul as you are.

This 914Rubber throttle position sensor (TPS) circuit board with a 5-pin connector is crafted for Porsche 914 1.7L models from 1972 to 1976 (D-Jetronic fuel injection, chassis numbers 472-29-00001 to 476-29-99999). It’s a critical component of the Bosch D-Jetronic system, relaying throttle valve position to the ECU to optimize fuel delivery and ignition timing. If your 914 is stumbling at part-throttle or idling rough, this precision replacement can bring back its crisp response.

Why It’s Crucial

The TPS circuit board sits inside the throttle valve switch, mounted on the throttle body. It translates throttle movement into electrical signals, telling the ECU how much fuel to inject and when to fire the spark plugs. A worn or corroded board—common after decades—can cause hesitation, poor acceleration, or even stalling. Our 20 years of 914 troubleshooting confirm that a failing TPS is often the culprit behind drivability issues on D-Jet cars. This 914Rubber board restores factory-spec performance, ensuring your 1.7L runs as smoothly as it did in the ‘70s.

Technical Specs

• Design: High-quality PCB with gold-plated contacts for low resistance and corrosion resistance, critical for the 914’s 12V D-Jetronic system operating at 3-5V signal levels.

• Function: Provides variable resistance across throttle range, delivering precise analog input to the ECU for air-fuel ratio control (target AFR ~14.7:1 at cruise).

• Compatibility: Fits 1.7L 914s (1972-76) with 5-pin D-Jetronic TPS (Bosch 0 280 120 008). Not compatible with 2.0L or L-Jetronic systems.

• Installation Tip: Align the board carefully during reassembly to avoid pin misalignment. Check the throttle valve switch housing for wear and pair with 914Rubber’s TPS gasket (we sell it) to prevent vacuum leaks. Test resistance across pins 1-3 and 2-4 (should vary smoothly from ~0.5kΩ to 5kΩ).

Why 914Rubber and PMB Performance?

We’ve torn down and rebuilt more 914s than we can count—tuning D-Jet systems, chasing vacuum leaks, and swapping ECUs in our sleep. Our partnership with 914Rubber is rooted in a shared commitment to authenticity and performance. We sell their full line of 914-specific parts because we know off-the-shelf generics don’t cut it for these cars. This TPS circuit board is a testament to that ethos—engineered to keep your 914’s fuel injection razor-sharp.