vias delete question
#1
vias delete question
If you delete the vias with a nwp plate will the car throw a code? I researched and found something about the p1800 code. For those that have the vias delete are you driving around with the check engine light on all the time?
#4
You've been around here that long and haven't researched it? It's easily found.
Essentially you lose a little low end, but gain midrange. Once you're off the line, you no longer need low end and the midrange gain is in the power band between shifts.
Essentially you lose a little low end, but gain midrange. Once you're off the line, you no longer need low end and the midrange gain is in the power band between shifts.
#5
More power above 3800 rpm. You do get a power loss between 2800-3800 according to the dyno sheet someone posted from an Altima with a VQ35.
===========
I heard about the P1800 code too. I can't have any codes, even pending ones if I want to pass my yearly inspection. Anyone know for sure about the code?
I guess I can always swap out the VIAS assembly each year if I had to.
===========
I heard about the P1800 code too. I can't have any codes, even pending ones if I want to pass my yearly inspection. Anyone know for sure about the code?
I guess I can always swap out the VIAS assembly each year if I had to.
#7
I just recently did the removal on my motor and you can definitely feel gains in the higher RPM. I think I lost a little gas mileage from losing the HP used in daily driving though. I usually was getting 19mpg city now I'm around 18.5-18 average. But I feel the difference in 3rd & 4th gear revving up. I just did the NWP spacers and can feel some gains there as well.
#8
I just recently did the removal on my motor and you can definitely feel gains in the higher RPM. I think I lost a little gas mileage from losing the HP used in daily driving though. I usually was getting 19mpg city now I'm around 18.5-18 average. But I feel the difference in 3rd & 4th gear revving up. I just did the NWP spacers and can feel some gains there as well.
#9
My trip computer shows 30-31 mpg (26-27 mpg doing the math) freeway on long trips (around 72-75 mph) but in town, especially in the Dallas area with horrific traffic light timing (and now major road construction due the new Cowboy's stadium in north Arlington where I live), 21-22 indicated on the trip computer and 18.5-19.2 actual is as good as it gets. You pretty much stop at every light here because the traffic engineers are complete morons.
#12
My trip computer shows 30-31 mpg (26-27 mpg doing the math) freeway on long trips (around 72-75 mph) but in town, especially in the Dallas area with horrific traffic light timing (and now major road construction due the new Cowboy's stadium in north Arlington where I live), 21-22 indicated on the trip computer and 18.5-19.2 actual is as good as it gets. You pretty much stop at every light here because the traffic engineers are complete morons.
#13
Yeah all of my driving is in stop and go traffic, so that was a question of mine, since I have the block plate can I remove the VIAS tank and the solenoid? Put a cap on the open hole near the where the VIAS was. Here is a picture of what is looks like now.
See that hose that is running into where the VIAS was, that runs into the tank. Which I am assuming is useless now. The tank has another hose connected to a sensor which I am also assuming is useless now.
In the top picture you can see the Tank with 2 hoses coming out of it.
FYI, I live in Florida so I don't care about codes
See that hose that is running into where the VIAS was, that runs into the tank. Which I am assuming is useless now. The tank has another hose connected to a sensor which I am also assuming is useless now.
In the top picture you can see the Tank with 2 hoses coming out of it.
FYI, I live in Florida so I don't care about codes
#16
#18
Ok, just to clear things up a bit here.... Adding the block off plate itself will not trigger the code. Only removing the air lines or disconnecting the electrical connector from the solenoid will.
#20
And the air lines that are still there aren't even being used anymore correct? As well as the tank.
#21
#22
#23
Took off the connector and the VIAS tank. Looks a lot cleaned up this way especially with that tank off the IM.
Here are the pictures with the NWP spacers as well. I just added those recently.
Here's a closeup of the spacers.
Here are the pictures with the NWP spacers as well. I just added those recently.
Here's a closeup of the spacers.
#24
#25
So basically P1800 only happens if you have a problem with that control valve whether it be a vacuum leak or an internal problem with the valve (as in my case).
#26
Thread
Thread Starter
Forum
Replies
Last Post
Unclejunebug
5th Generation Maxima (2000-2003)
10
04-02-2016 05:42 AM