Me78569

Issue I have is Emissions here at 7000' altitude. I cannot pass emissions without a smarty and setting the truck to 1/2 mode, because they do snap tests at idle, at 35 mph, and at 45 mph. I am trying to solve that issue, but thought I could also solve the bark issue.

You will still have %100 power but you would never have a snap TPS situation, thus no smoke Rather you would have a smoothing effect on the throttle. Joe blow could get in your truck, with the turner turned up and floorboard it without causing issues. You could pretty easily put a potentionmeter in place to define how much of a buffer is put in place. off with the knob turned one way, then half position = 1 second to reach desired TPS then full turn = 2 seconds to reach desired position. You would have to put in a anti bark process that didn't buffer unless going from high TPS to 0. Maybe a jump from %70+ TPS to 0 TPS would result in a %70 -->%20---> %0. the only issue I see with it is you may end up a situation when your need the ecm to listen to you and you would have that "delay" dunno how much this would matter, but something to consider. In the middle of this I am working on talking to the truck again with the arduino to read rpm ect from the obd rather than tapping all the wires under the hood.

Well the more I think about it the more I am leaning away from a Opacity sensor and more towards a throttle sensitivity buffer. If you were to watch boost, ( already doing that with my turbo controller), and TPS input you could watch for snaps in throttle position, then buffer or limit the increase in TPS to a slower point. If boost was above a given PSI, 10 for example you could just apply the demanded throttle position, but it it was less than that you could programmically roll into the throttle. Heck you could even use this as an Anti-bark tool, just in the same way as watching for snap increase in throttle you could watch for snap decrease in throttle and slow the release of throttle. I know with my truck if I snap to %30 throttle from a standstill I get a good puff of smoke, where as if I roll into the throttle to %30, even if it is just a second or 2 to get there, I am %100 smoke free. just more thoughts to keep me up tonight.

So I have been mulling over a way to pull fueling when smoke is being blown out the tailpipe. This is going to take a few revisions, but my basic plan is to put an arduino between the apps and the ecm then read input voltage from the APP's while watching for smoke out the tailpipe, then adjust the APPS voltage to the ECM to reflect less TPS input if smoke is detected. couple of issues, 1. keeping the sensor clean 2. version 1 won't work at night, since there is no natural light 3. placing the sensor at the end of the tailpipe may cause too much of a delay due to the time between stabbing the throttle and the time it takes for the plume of smoke to reach the end of the tailpipe. 4. If I place it in the downpipe I will reduce the lag time before I sense smoke, but I also then have to deal with heat, and also have to include a light source, which would fix issue #2, but adds complexity. ( guessing this is the route I will go) 5. Need to figure out a good way to output a given V to the ecm. I dont know if I can use PWM from the arduino or not. Ordered Parts. 6 pin Deutsche Plugs: http://www.ebay.com/itm/331678354561?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT Arduino light sensor: http://www.ebay.com/itm/Adafruit-ALS-PT19-Analog-Ambient-Light-Sensor-Breakout-Arduino-I2C-5v-3v-RoHS-/181959945589?hash=item2a5da86d75:g:2lQAAOSwbdpWbK9m Some light source: Uknown but looking for a 14v LED that can put up with heat. Need to think of a way to protect Arduino: http://www.ebay.com/itm/Arduino-Mini-USB-Nano-V3-0-ATmega328-CH340G-5V-16M-Micro-controller-board-DIY-/322100994176?hash=item4afeb72080:g:KbwAAOSw2x1XLoTl Now for the basic code thoughts. input V from the APP's should be betwee .5v and 4.5v ( I think) On a timer I need to watch for the analog input of V from the apps, then output the inputted voltage to the ecm. This can be done once ever few ms. Really just code that acts as a passthrough. Next I watch the input V from the light sensor, again .5v to 4.5v depending on how much light is visible. In the middle of the above loop I need to watch the input V form the sensor, then negate the output V to the ecm by the % based upon the smoke levels in the exhaust. IE: if there is a %5 reduction in visible light in the tailpipe then I need to reduce APPS V to the ecm by %5. In terms of big picture it would be like torque management, but based upon smoke output.

DieselFuture You account looks to have some sort of block on that feature. I am looking now Here's what he see's DieselFuture, Looks like you hit the 25MB max for attached items for the general member group. You can delete old attachments to free up space by clicking your username in the upper right, then clicking "my attachments"

I only have over the air channels, it was a rough adjustment for my wife, but the money saved was worth it. Now she cares less about it. She has her hulu shows and is happy. the latest show for her is stargate haha

I honestly dont know. I am struggling to understand the point of the green wire since error codes should be able to be triggered via the canbus messages. The big bosch riddle in the PSG.,

Yep the Cummins ECM acts as the translator between the vp44 psg and the sensors. The vp44 psg controls the fueling and timing on it's own based upon the requests from the ECM. its a pretty nifty system considering what they had to work with back when. This is why we have the 65 hp limit on canbus boxes. the ECM can request anything for HP levels but the PSG will limit all commands to stock + 65 hp based upon its own internal fueling software limits. hence why we wiretap, effectively cutting the PSG out of the equation.

No all fueling commands are sent Via canbus messages. The ecm requests a timing and fueling then the VP44 decides what to do with it. That is all done via the 2 canbus wires. The VP44 PSG wears the pants in the relationship. All the ecm can do is request for a given amount of power. I am not sure what the green fault wire is for. Likely a way for the vp44 to tell the ecm that there is an issue with the timing or fueling solenoids.

What wire are you talking about? are you talking about the black wire and the white wire? from the ecm to the vp44? If so those wires talk VIA canbus so there isn't much you can do with the DMM to test them other than look for continuity.

Whats the code?

Ordered a new 9" x 9" roof vent. Hopefully it is nice this weekend so I can get this thing buttoned back up.

Ok, you said you tested the wires? Tested for 5v from the ecm? tested for Grnd? tested for good omh from the pin at the ECM to the signal pin at the sensor?

I agree with Cumminz. I am guessing you have an issue on the crank sensor. What did you replace?

without throwing codes would be the hard part. You would have to disable one of the triggers that the truck depends on. the VP44 can pull fuel so a simple lift pump switch wouldn't work. Maybe a simple fuel line cutoff solenoid?

Spent some time yesterday working on the camper. got the skin pulled and the new wood cut. I will have to get some pictures of the damage as it is pretty impressive. Still needing to get some hardware, but I should be able to finish up this week or weekend in order to go camping the weekend after next.

I know it must be hard to concentrate on driving when you are hearing everything the space station is broadcasting....

She looks like she is enjoying herself hahahaha. I am guessing she is more of a morning person than you are?

The mating surface of the crossover and injection line is what seals, not the thread. This is true for more fuel lines in our system. all JIC fittings are like this,

Agree'd not worth the risk.

I like that area, I have a good friend who is from Palo. I understand that. There is no radio in my BMW and I don't mind it. like driving a peaceful cloud to work.

peace and quite yet drives a 24v cummins.......irony right there haha, couldn't help it. where in Iowa are you from?

Page: 489 Part: 3 Part number: 04637849 https://mopar1973man.com/external-media/pdf/2000Ramparts.pdf#view=FitB&page=489 looks to be less than $2.00...when it was still stocked hahahhaa haha what pitch and thread no idea. What I read says either 1/2" or 3/4" npt

I ran the AT3's and liked them a lot.

03-07 cr truck are done...... we are next. pretty curious.