MPG cut in half !!!

[Openeoad]

I am

you have two throttle position switches connectors. also you have a (map) manifold pressure sensor that have 3 vacuum tubes that go to the intake. my best guess that one of these is either off or has a crack in them.
a good mechanic with a GOOD scanner could probably tell you whats going on.
you have an OBDII connector ,i think it is to the left side of batt . if i was working on it i would pull codes if any,then check tps readings,then map readings eng off then eng running.
if the map is out of range the comp substitutes a value which is richer than normal.
herman

goin

you have two throttle position switches connectors. also you have a (map) manifold pressure sensor that have 3 vacuum tubes that go to the intake. my best guess that one of these is either off or has a crack in them.
a good mechanic with a GOOD scanner could probably tell you whats going on.
you have an OBDII connector ,i think it is to the left side of batt . if i was working on it i would pull codes if any,then check tps readings,then map readings eng off then eng running.
if the map is out of range the comp substitutes a value which is richer than normal.
herman

I am definently going to check in that thanks a million Herman

 

[Openeoad]

It's not OBD-II. It's the same connector but the error codes are NOT OBD-II. It's closer to OBD-I - a much smaller set of "open" codes. very little useful data ime. TuneECU covers most error codes.

Looks like I may be going to see Wayne Tripp for a tube thanks a bunch

 

[Openeoad]

Is it running ruff or does it run normal? Also is the engine light on and did you do anything up top with the filter system? Is the engine light on?

I don't have any lights coming on and I haven't done anything with the filters yet. I feel like it not running as good because on rare occasions it acted like it wanted to die and it idled rough but it hasn't done thy in a while

 

[warp9.9]

I don't have any lights coming on and I haven't done anything with the filters yet. I feel like it not running as good because on rare occasions it acted like it wanted to die and it idled rough but it hasn't done thy in a while

Ok while your doing your checks look at the low tension leads on the coils they loosen up and give intermediate contact which can give you a lousy spark at the plugs. clean them and the terminals re-crimp with needle nose pliers and cover with dialectric grease. they should be tight going on the coils. maybe your just not getting a good burn in one of the cylinders.
the #1 cylinder coil is the hardest to get at as it is up front in the goose neck part of the frame.

 

[TURBO200R4]

It's not OBD-II. It's the same connector but the error codes are NOT OBD-II. It's closer to OBD-I - a much smaller set of "open" codes. very little useful data ime. TuneECU covers most error codes.

i repeat
a good mechanic with a GOOOOOOD scanner could probably tell you whats going on.
i agree there is not a lot of codes like a car with power windows,cruise control,traction control,montering of coils ect. however there is with a good mechanic and a good scanner and some one that knows how to use one could be very helpful.
on page 11.26 & 11.27 are 48 codes listed of which 33 are obdII codes.
i put my scanner on mine and was surprised how much data i had. Certainly enough to diagnose the problem that he has.
like bar says the tune ecu would be great if you had one.
herman

ps on some cars they run like $Hit after you disconnect the bat i never had this when i changed my bat.
if you are going to keep changing things you should get tune ecu

 

[idk]

Even if you are not going to keep changing things, you should get TuneECU.

 

[Idaho Red Rocket 3]

And a Dobeck Performance AFR Plus.

 

[barbagris]

And a Dobeck Performance AFR Plus.

Or PC5 and AT.

Though personally, if it an option - I'd decide on what I'm changing - buy'em - go to Wayne Tripp and have him "deal with it".
The advantage being he not only has tools for analysis - he has MASSES of experience specifically of R3's.

 

[barbagris]

I don't have any lights coming on and I haven't done anything with the filters yet. I feel like it not running as good because on rare occasions it acted like it wanted to die and it idled rough but it hasn't done thy in a while

1) Is it new? - very low mileage?
2) What model year?

When mine was NEW it would also occasionally get close to dying especially in traffic. You'd open a bit to get past a car - back off and it'd stutter. And yes - it'd smell rich. As it gained miles it improved - PC5/AT cured it completely. Sadly Mr Tripp is a wee bit far from me.

 

[Openeoad]

1) Is it new? - very low mileage?
2) What model year?

When mine was NEW it would also occasionally get close to dying especially in traffic. You'd open a bit to get past a car - back off and it'd stutter. And yes - it'd smell rich. As it gained miles it improved - PC5/AT cured it completely. Sadly Mr Tripp is a wee bit far from me.

That sounds exactly like what I've got going on..It's a 2013 I don't think I even have 2000 miles on it yet