side effect of disconneting egr valve
#31
I was told (since I don't have a tuner to disable the egr function) I should leave the valve plugged in so I don't get a CEL. I had planned on getting the tuner some day and then installing the block off plate. Now after seeing Cheezit's research I may have to re-think that idea.
Also - the truck is running very well. The only difference from before the delete is the lower boost. It used to be 26 psi and now only about 21 psi. If I didn't have a boost gauge I wouldn't know there was any difference.
I never hear my cooling fan come on, but my temps have not been above 205 degrees either.
Also - the truck is running very well. The only difference from before the delete is the lower boost. It used to be 26 psi and now only about 21 psi. If I didn't have a boost gauge I wouldn't know there was any difference.
I never hear my cooling fan come on, but my temps have not been above 205 degrees either.
I just ordered an Edge insight CST so I can see whats going on better. My cooling fan comes on when I climb a long steep hill and its hot out. I guess I will have to wait and see when I get done with the ERG cooler delete. Thanks for the input.
#33
I have a 2005 with no EGR system. I have the egr valve plugged in and installed in the manifold. The Edge Insight shows no DTCs, but I am in some sort of limp mode, because my boost is limited to 21 lbs. I'm ready to get an SCT so the computer stops looking for egr.
I'm confused after reading all of this.
I'm confused after reading all of this.
Thoughts?
#35
So cheezit, I just redid my head gaskets and put in a rivercity erg delete. I have an early model '04. The tech. left the erg valve in and connected until I get a revised tune from Eric at Innovative. Are you saying that I should leave the erg valve in and connected, regardless of whether my tune is setup for no erg?
Or maybe I misunderstood and it is just the '05 and up that have a prob?
Also, I don't think I have ever heard the fan come on. Lol I don't tow more than 8,000 lbs give or take so maybe I'm not making it work hard? Is it really that loud that I couldn't miss it? I haven't ever seen my eot above 220. Is that why?
My A/C is as cold as a polar bears nose!
Or maybe I misunderstood and it is just the '05 and up that have a prob?
Also, I don't think I have ever heard the fan come on. Lol I don't tow more than 8,000 lbs give or take so maybe I'm not making it work hard? Is it really that loud that I couldn't miss it? I haven't ever seen my eot above 220. Is that why?
My A/C is as cold as a polar bears nose!
#36
Join Date: Oct 2009
Location: N. Fort Worth, tx
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Ask eric what he knows about the issue. Like I said I speak only of the 06/07 for certin. matt states the same findings on an 05.
haveing the valve there and pluged in with no cooler still lets it work but it cant flow any egr as there would be no cooler. IMO it wont hert to leave it there and pluged in.
haveing the valve there and pluged in with no cooler still lets it work but it cant flow any egr as there would be no cooler. IMO it wont hert to leave it there and pluged in.
#39
Engine temperature is not the only parameter that the PCM monitors to determine cooling fan operation. This is the reason that you will see some variation in engine temperature as it correlates to fan operation. The operation/description of the FSS (Fan Speed Sensor) from the PC/ED manual has a fairly good explanation as to how the system "thinks". This is not your traditional engine hits temp X and the fan clutch locks up. The fan speed sensor is a Hall-Effect sensor integral to the vistronic drive fan (VDF). The powertrain control module (PCM) will monitor sensor inputs and control the VDF speed based upon engine coolant temperature (ECT), transmission fluid temperature (TFT) and intake air temperature (IAT) requirements. When an increase in fan speed for vehicle cooling is requested, the PCM will monitor the FSS signal and output the required pulse width modulated (PWM) signal to a fluid port valve within the VDF.
#40
Playing around today.......
Sct tunes loaded, egr unplugged, AC on high, parked. Engine temp gets to 210, eot gets to 227, fan never commanded on. Fanvar =0.00%. Plug egr back in but laying in valley and the fan commanded on somewhere around 195 degrees ect. With Elite tunes I see roughly the same, although fan is commanded on at a slightly lower engine temp. I went for a drive with the egr unplugged and would see eot of 226 and ect of 206 and no wrench light or fan. Tried beating the truck or cruising. Cruising the ect was about 190, eot would get to 220, so that 15-16 degree variance is not at all accurate. AND NO CODES ON IDS WITH EGR PLUGGED IN. FYI
#42
Well......
So whats your point...I type like a 3 fingered guy with 1 eye, so leave me be......J/K And an anachronism is something that is chronologically out of place.. Is that what you meant????? Thought not.....
#43
#44
Join Date: Oct 2009
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you will need a programer to stop it from going into default when the p0401 codes hits. this is my tested findings at this point using fords diag equipment and test tools with my own personal truck.
#45
just dont use the block off plate. install the egr valve were it should be and plug it in.
you will need a programer to stop it from going into default when the p0401 codes hits. this is my tested findings at this point using fords diag equipment and test tools with my own personal truck.
you will need a programer to stop it from going into default when the p0401 codes hits. this is my tested findings at this point using fords diag equipment and test tools with my own personal truck.