D-Jet Fuel Injection Help, Loss of Power with Warm Engine Options

[Mblizzard]

I have a 1973 2.0 built to a 2056 running stock fuel injection. I am running points and I have verified the dwell and timing are correct. The air temperature sensor on the throttle body is disconnected due to it causing the engine to hunt excessively at idle. The valve were set less than 500 miles ago.

The car starts and runs fine on initial start. It at times has a little hesitation on acceleration due to the wear on the TPS board I think. As the engine warms up into the normal range, I experience a significant loss of power. The temp never goes past the "M" on the temp gauge. There is never any pinging. But there is just no instant response to pressing the accelerator that is present when the engine is cool. At times pushing the accelerator results in little or no engine response for a brief period and the engine almost stalls.

I have checked numerous times for vacuum leaks, lose wires, and made sure the grounds are good. Checked the plugs and it does not appear to be running rich or lean.

I tried to calibrate the TPS according to the Pelican article but never really got the readings as indicated in the article.

I am going to go back through it one more time but I need some suggestions as to what I should check next?

[r_towle]

To add to what Jeff said.

if your car is too hot, you would get more fuel....to keep it from melting.
This is the case with any fuel injection system.

More nowadays....you get limp home mode which is super rich.

Like jeff said...everything in the system, all the sensors are there to tell the ECU how long the pulse width needs to be.

The FI trigger points just tell it when to do it.
Everything else is for mixture.

So.....
The best way to figure it out is with an Air Fuel gauge stuffed up the tailpipe.

I use a portable one with 8 feet of cable.
Its an O2 sensor inserted in the tail pipe with a metal clip and a screw clamp to keep it in place (lost one on the road once)

I use masking tape and run the wires up to the gauge which sits on the passenger seat so I can see it...along with my tools.

I drive the car slow, fast, transition, long highway runs.
I drive and stop , tune the MPS, drive some more....

That is how I do it.

You can also ask for someone that has the more expensive equipment and knowledge to setup your MPS properly and bolt it back in place....

rich