Can a GM TPI be converted to a fuel injection system?

As with our column last month about six-speed transmissions, converting to a fuel-injection setup like the GM TPI will not be as cheap nor as easy as installing an 850cfm double-pumper Holley, but the benefits to using a fuel-injection-based delivery system will far outweigh the additional costs involved.

What happens when the TPS is bad on a Chevy truck?

Usually if the TPS is bad after it fires with ether, it’ll keep running because it’s no longer in “flooded mode”, when RPMs go above 400, it’ll switch to choke or normal fuel trims depending on CTS (Coolant Temperature Sensor) feedback, but it’s something that won’t cost you anything to confirm, HTH!

What should the TPS be on a 1990 Chevy 5.7L?

The TPS should go from >0 to ~4.8 VDC (IIRC), for example mine goes from 0.45 – 4.39VDC at WOT. I know they say it should be ~ 0.58 – 0.59VCD but, that’s close enough for me.

Can a 1987-92 GM tuned port injection system be used?

When using the 1987-92 F-Body injection systems, the two center bolts on each side will not fit the earlier engines without being re-drilled for the proper angle to match the early heads. Also 1985-88 manifold plenums have a cold-start passage and ninth injector for start-up.

How is TPS used in a fuel injection system?

The TPS provides the most direct signal to the fuel injection system of what power demands are being made by the engine. The TPS signal is continually measured and combined many times per second with other data such as air temperature, engine RPM, air mass flow, and how quickly the throttle position changes.

What does the throttle position sensor ( TPS ) do?

The throttle position sensor (TPS) is part of your vehicle’s fuel management system and helps ensure that the correct mixture of air and fuel is delivered to your engine. The TPS provides the most direct signal to the fuel injection system of what power demands are being made by the engine. The TPS signal is continually measured…

Is the TPIS miniram a fuel injection manifold?

The TPiS MiniRam is the ultimate small block Chevy fuel injection manifold for both road and track. The TPI style intake works excellent at creating a large amount of torque at low RPM, but rapidly drops off as the revs rise.

What do you need to know about replacing TPS?

Replacing the TPS will include clearing relevant fault codes, and may require software reprogramming of the new TPS module to match other engine management software. This is all best left to a professional mechanic who can provide you with a diagnosis, and then install the correct replacement part.