2001 7.3 Weak... Help!!
Senior User
Joined: Feb 2010
Posts: 119
Likes: 0
I have a grey CPS replaced under recall about a year ago. My engine runs great but sounds like it is probably a good idea to pick up the updated blue unit. Are all grey units potentially bad, only a limited run, or do all the grey units cause the engine to run less than at its best?
Ford used a cheaper sensor inside the Gray units and they also used a cheap fake gold plating on the 3 pins, the plating is not a good contact and most of us Bead Blasted the gold off the pins to expose the copper/brass pins and it helped a little, but the sensor was cheap and that was the downfall.
So the new Sensor has a better sensor inside and they went back to the Tinned Copper Pins and they work so much better. For 25.00 it well worth it.
One thing I noticed is the AIC/ACPM, with the Gray unit I had 672 RPM at Idle w/80HP tune, and the Blue is 666 RPM Idle w/80HP tune, and I check this after the Rig gets hot and all temps are up. And the Gray CMP would surge and mis-fire and run the EGT's to 1000 doing 45. I will never use another gray CMP, even if you paid me to use it.
Senior User
Joined: Nov 2009
Posts: 319
Likes: 1
From: Kirkland, WA
Ford used a cheaper sensor inside the Gray units and they also used a cheap fake gold plating on the 3 pins, the plating is not a good contact and most of us Bead Blasted the gold off the pins to expose the copper/brass pins and it helped a little, but the sensor was cheap and that was the downfall.
So the new Sensor has a better sensor inside and they went back to the Tinned Copper Pins and they work so much better. For 25.00 it well worth it.
One thing I noticed is the AIC/ACPM, with the Gray unit I had 672 RPM at Idle w/80HP tune, and the Blue is 666 RPM Idle w/80HP tune, and I check this after the Rig gets hot and all temps are up. And the Gray CMP would surge and mis-fire and run the EGT's to 1000 doing 45. I will never use another gray CMP, even if you paid me to use it.
So the new Sensor has a better sensor inside and they went back to the Tinned Copper Pins and they work so much better. For 25.00 it well worth it.
One thing I noticed is the AIC/ACPM, with the Gray unit I had 672 RPM at Idle w/80HP tune, and the Blue is 666 RPM Idle w/80HP tune, and I check this after the Rig gets hot and all temps are up. And the Gray CMP would surge and mis-fire and run the EGT's to 1000 doing 45. I will never use another gray CMP, even if you paid me to use it.
I am correct in understanding that Ford released the updated blue units for 7.3 motors thru 1997?
Cargo Master
Joined: Oct 2007
Posts: 2,712
Likes: 107
From: BoCoMo
You have a great truck there and we will all help you walk through this.
When my '01 was running junky it was two different issues
1) bad fuel
2) trans crapping out. You might want to drop the pan and look at the bottom. takes about 45 minutes to drain and drop and return. it will hold about 6 qts
When my '01 was running junky it was two different issues
1) bad fuel
2) trans crapping out. You might want to drop the pan and look at the bottom. takes about 45 minutes to drain and drop and return. it will hold about 6 qts
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