WTB - LH module loaner or used

[schoward]

Want to Borrow or Buy -

All - looking for a used LH Module for a 1988 928 s4 or at least one we could use temporarily as a Test unit - p/n 928.618.123.11 Bosch 0280 002 504. I am shop manager at a Foreign Car Repair facility and we need a loaner or good used unit to test in the car.

We have been through all components for months and had the current LH unit tested (tested ok per expert). Numerous signs still point back to the LH. We have run all the tests including scoping the ignition and fuel side as well for pressure and injector behavior. Injectors professionally cleaned and were in ok shape anyways we found.

Cars runs well for first 5 - 30 minutes then we see degradation in the injector pulse/open time and car sputters and dies. O2 disconnected so that is out of picture. Coolant temp sensor tests check out and notably when we disconnect it - nothing really happens (LH should go full rich we believe). Wiring / resistance checks ok at the LH plug for the coolant temp sensor and we have replaced it for good measure. Cam timing, ignition, ground points, fuel pressure regulators all check out.

Anyone have a module above an 88 that would be willing to part with or short-term loaner to NJ? Can cover two-way shipping of course and whatever else is worked out.

PM ok.

Thanks in advance.