Simplest mod ever

After reading the thread so far it's clear they have it set up this way for a reason, it's no conspiracy from the car companies or government to reduce the power of your Lancer.
 
SA_Dave said:
He said he'd have a look. He has a bench top loom so if he can read my ECU he knows what to change that will work. He has a dyno so might do before and after runs or tune with it.
Click to expand...

If there isn't 5 cars in the way ;)
 
the issue is our cars loose base rail rail pressure right of idle at acceleration that is shortly overcome by the fuel pump meeting the fuel pressure needs.
 
TPG said:
SA_Dave said:
He said he'd have a look. He has a bench top loom so if he can read my ECU he knows what to change that will work. He has a dyno so might do before and after runs or tune with it.
Click to expand...

If there isn't 5 cars in the way ;)
Click to expand...
Exactly how it was today.
 
At least people have put forward some reasonable suggestions about why it might not be a good idea. What is a forum for if people can't make suggestions and feed in ideas? Imagine if "Just because you shouldn't" ruled our lives. Some people on here can't even check their tyre pressures ffs.

From what I understand, running a bit rich is a long way from washing the cylinder walls. During normal driving the O2 sensor will compensate a bit. The real effect is when I put the throttle down, it has WOT fuel pressure with maybe 2/3 to 3/4 open throttle. Not a really big deal I wouldn't expect, apart from running rich. Still doesn't seem to be signs of running rich at the moment though so I'll leave it a bit longer.
 
Dave mate blowing anything isnt the prob thats not likely but as u know the reg forms a 1-1 pressure ratio with the air compressor (unless ur turboed) creating higher pressure on the rail side will cause imbalance causing the failure of ur injectors how long this will take i cant say but i wouldnt go for a run 2 Talem Bend till u know more lol :thumbup:
 
I'd expect the potential risks would coincide with those of a faulty FPR.

Degraded Spark Plugs:
With more fuel getting injected into the engine, the spark plugs will be made to work harder as well, causing them to be the first component to go bad. You'll notice that they'll get blackened ends much faster than before. Cleaning them won't help too much; you'll get smooth running for a while till they get dirty again.
Cold Start Stalling:
If the fuel pressure indicator is busted, then there will be an abnormal fuel and pressure level in the engine. That either results in your car not turning at all, or stalling in a couple of seconds after starting up. This will happen most often during cold starts.
Black Smoke:
The easiest symptom that you can detect is black smoke coming out of the tailpipe. And it's not just smoke; low fuel pressure will cause excess fuel and oil to enter the engine, and some of that oil will leak from the tail.
Decreased Mileage:
Another symptom that's easy to detect is an unforeseen drop in mileage. Again, more fuel going to the engine means more fuel is wasted, making you fill more fuel and get less out of it.
Smelling Fuel in the Oil System:
Low pressure may also cause the fuel to enter the oil tank. You can find out if this is happening by sniffing the oil dipstick. If you smell fuel on it, then your fuel injector is running on low pressure.
Click to expand...
It seems the issues are at the low end of the scale (Not accounting for prolonged use). Personally I feel if you really want to remove the flat spot source an aftermarket FPR and then no more risks. But its your car

A silly analogy, but this would be like removing wheel nuts entirely to save a bit of weight, risking the wheels coming off because you don't want to pay for the more expensive lighter ones :lol: Just at a different level, haha
 
i have as much faith in engineers as far as i can throw them. cars often have poor designs. but thanks for clearing it up with an actual logical reason (th0m0mx83 and matty). i personally dont have a reason to do this "simple mod" as my fpr is functioning.
 
You don't get a CEL light when you take the vacuum hose off your FPR? i blew a vacuum hose off my FPR once and i got a CEL...
 
Junior said:
You don't get a CEL light when you take the vacuum hose off your FPR? i blew a vacuum hose off my FPR once and i got a CEL...
Click to expand...
Not yet but I'm not going to leave it much longer. Haven't seen any sign of it running rich but I'd rather be cautious and wait to see if a) my ECU can be reflashed and b) if it can, the improvement that brings. Might revisit the FPR after that.
 
You must log in or register to reply here.
Back
Top