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> D-Jet Fuel Injection Help, Loss of Power with Warm Engine
Mblizzard
post May 7 2014, 09:08 AM
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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?

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Mblizzard   D-Jet Fuel Injection Help   May 7 2014, 09:08 AM
r_towle   did you recalibrate your MPS? Do you have a knob ...   May 7 2014, 09:10 AM
Mblizzard   did you recalibrate your MPS? Do you have a knob...   May 7 2014, 09:40 AM
The Cabinetmaker   Have not redone the MPS. But while I am sure th...   May 7 2014, 09:51 AM
r_towle   Have not redone the MPS. But while I am sure t...   May 7 2014, 10:00 AM
Mblizzard   Have not redone the MPS. But while I am sure t...   May 7 2014, 10:03 AM
worn   OK just to be clear, I am asking the following q...   May 7 2014, 03:17 PM
Cap'n Krusty   I don't think idle CO adjustment is gonna solv...   May 7 2014, 09:19 AM
The Cabinetmaker   If you don't get that tps adjusted right, you...   May 7 2014, 09:48 AM
Java2570   Are you still running those fuel injectors with mo...   May 7 2014, 10:06 AM
Mblizzard   Are you still running those fuel injectors with m...   May 7 2014, 10:10 AM
Jeff Bowlsby   All the engine FI sensors are used to calculate he...   May 7 2014, 10:12 AM
The Cabinetmaker   Mike, what cam?   May 7 2014, 11:36 AM
Mblizzard   Mike, what cam? Stock cam.   May 7 2014, 11:58 AM
r_towle   To add to what Jeff said. if your car is too hot,...   May 7 2014, 12:52 PM
Mblizzard   Ok so I took a closer look at the plugs and decide...   May 7 2014, 02:31 PM
914_teener   Ok so I took a closer look at the plugs and decid...   May 7 2014, 07:04 PM
Mblizzard   Ok so I took a closer look at the plugs and deci...   May 7 2014, 07:50 PM
914_teener   [quote name='914_teener' post='2034722' date='May...   May 7 2014, 09:15 PM
achman_73_2.0   Watching this thread carefully, maybe it will help...   May 7 2014, 07:31 PM
Mblizzard   Watching this thread carefully, maybe it will hel...   May 7 2014, 07:51 PM
Mblizzard   Ok so I finally bit the bullet and ordered a wideb...   May 11 2014, 07:44 AM
cary   Search the word "stoic". I have mine se...   May 11 2014, 08:11 AM
Mblizzard   Search the word "stoic". I have mine s...   May 11 2014, 11:56 AM
r_towle   Rich on accel, lean on DECEL.... Idle will be wha...   May 11 2014, 04:12 PM
Mblizzard   Oh so I got the AF Guage :) installed. So under ...   May 16 2014, 02:54 PM
Dave_Darling   What is the bust way to overcome the lean conditi...   May 16 2014, 04:13 PM
Racer Chris   Is there a tool for holding the outer screw that ...   May 16 2014, 04:36 PM
Mblizzard   Is there a tool for holding the outer screw that...   May 16 2014, 05:42 PM
Bleyseng   Oh so I got the AF Guage :) installed. So under...   May 17 2014, 05:34 AM
r_towle   is it lean all over the place? If so, I have had ...   May 16 2014, 03:25 PM
914_teener   In another thread you posted the location of the w...   May 16 2014, 03:57 PM
Mblizzard   In another thread you posted the location of the ...   May 16 2014, 04:05 PM
Java2570   You may be able to get away with just adding some ...   May 16 2014, 04:40 PM
Mblizzard   Wow having the AF gauge made all the difference. ...   May 16 2014, 05:31 PM
Java2570   Right on!!   May 16 2014, 06:12 PM
Mblizzard   Well I am getting closer to the ranges Chris sugge...   May 17 2014, 12:55 PM
Racer Chris   Well I am getting closer to the ranges Chris sugg...   May 17 2014, 02:48 PM
Mblizzard   Well I am getting closer to the ranges Chris sug...   May 17 2014, 04:41 PM
Bleyseng   Can you turn the WOT stop? On a MPS the first thin...   May 18 2014, 05:42 AM
Mblizzard   Can you turn the WOT stop? On a MPS the first thi...   May 18 2014, 07:51 AM


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