Thread: P1400 Pita Code

BS. There is no way pumping exhaust gas (hot air) will make anything cooler. It's there to gum **** up and make me money. Have you seen how small an egr port is going to the intake? It's like the size of a bb on most cars. I highly doubt recirculating that small amount of gas is going to do anything for the environment. I'm just pointing out what I see and I'm going with it. There are so many lies people accept as truth and this imo is one of them.

I don't think any other country requires it. I couldn't find an answer on google easily, probably because no one uses it anymore. I'll take my "poorer" gas mileage and "increased emissions" to keep my intake from having nasty **** in it. I didn't notice an increase or decrease in gas mileage at all.


Sorry to turn this into a debate, I tried helping you on the other forum, hope that makes up for it.

I don't know what to say, skcusloa. I gave you links that explain it clearly, you just willfully don't want to listen.

I have 220k miles on my engine and nothing is gummed up, running stock emissions equipment. This stuff was meant to last the life of the car. I don't know about your b13, but in my 14 year old b14 it's running fine. The PCV system is about the width of a BB and has oil vapors running through it & it doesn't get 'gummed up'. Why? because the heat of the stock design burns off & thins out the stuff so that it does not cake up to any serious degree.

Other countries did not require catalytic converters for a long time either, but we require those also for a reason. We have stricter emissions laws here because we have 300+ million people and 100 million of them drive all over the place every day, unlike most countries. You may not see the effects of pollution out in Oklahoma, but come visit a bigger area like southern california, northern california, detroit, nyc, etc and you'll very quickly understand why these emissions controls exist.

We worry about nitrous oxide emissions here because we've had bouts of acid rain before due to them, mainly from diesels. Without EGRs, a gas car pollutes NOx like a diesel. If you have direct injection, or dual variable valve timing on both cams, you already have a clean, efficient burn and little to no pumping losses, so you don't need EGR.

Look up acid rain if you don't know what it is. It's nasty stuff. We had problems with it, Canada had problems with it, Italy and Europe in general are currently dealing with it since they love diesels so much. To be fair, diesels also emit a lot of sulfur, which is just as bad as nitrous oxide.

I lived in California for a long time & they give you a printout of how bad/good your car pollutes. Removing the EGR makes your car produce around 10 times more nitrous oxides! If you search around, people will report that they can smell it and sometimes see smoke coming out their tailpipe after the mod. Go figure.

Given that removing the EGR does nothing for your performance, causes a CEL, and causes you to pollute more, it sounds like a broke ricer's attempt to fix their car or upgrade it's performance to me.

As far as gas mileage goes, do you have a scanguage or other tool to verify that? it's hard to notice 1-2mpg since these cars get good fuel economy to begin with. I get over 30mpg. Would you notice a 3%-6% drop in fuel economy without some way to measure it? i'm doubting it....

Lu6i4: Here's an interesting thread:

http://www.sr20-forum.com/general-maintenance/24765-egr-delete-information.html

I think i'm going to try cleaning mine for the hell of it. At 220k, it probably wouldn't hurt to do so.

So on my quest to beat this cel, I think I found my problem. I do not have the solenoid valve, and I think thats whats causing the pressure difference. Every past post I looked upon, it states that I need to keep it within the removal. Which goes especially for a lowport.

can anyone confirm this?

Yes, the problem is that the solenoid is disconnected.

Dave

The car has no way of monitoring pressure. It is seeing a constant temp at the egr temp sensor and assuming it's stuck open or closed.

I've worked on cars for years. I've removed more intakes than I can remember to clean the egr ports because they were full of crusty carbon stuff. I have never had to clean an sr20 intake. I have seen what my catch can catches and I don't want my car to suck that in. I believe what I see. I guess I'm a total wierdo for wanting my car to suck in nothing but clean air. I think your strange for thinking a car sucking in hot exhaust gas "cools it". It is all my opinion and I could be wrong, I'll agree to disagree.

I'd love to see emissions tightened in my state. I'd make 2x as much money. We don't even have inspections. I see so many cars running around with bald tires, cracked windshields, no brakes, etc.... The majority of people in this state will drive it until it will not move, then finally they'll fix the bare minimum.

P1400 Differential Pressure Feedback Egr Circuit Low Input

Than why would this come up as an cel code?

my b13 has this code.

exhaust gas temperature sensor

Find a pressure sensor, I dare you.

just use the stock egr temp sensornthe get rid of the cel. ive have tried the resistor and it ended up cooking the resistor. once i saw that happen to secound one. i called it quits. you dont want to fry the ecu.