mustang5.slow

i just did my swap for a b20b in my EG and Im running a p75 with that but my milage is shittttt I probably 12MPG's what can i do to solve this issue.???? please help.


how many miles do get out of your swap.??

95vxtealhatch

How many miles on that engine? o2 sensor is suposed to be replaced every 60,000 miles. Do a full tune up, Cap, rotor, wires, plugs, fuel filter, make sure the timing is correct and adjust if nessicary. Try shifting at low rpms too, and keep your foot as light on the pedal as possible. I'm not saying your doing anything wrong, some people just don't know how to squeeze the MPG outa thier engine. Some people say PCV has somthing to do with mpg too. Oh yah heavy rims suck the MPG out your engine too ive found out recently.

mustang5.slow

cool i definitely will.

right now my CEL is 42 TPS.

but yeah i haven't done the master tune up... and i should get my timing checked.

cause the idle to the ping that it will shut off on me if i leave it.

any other suggestions out there.

Toroke

I don't know how much truth there is to it without running through the calculations, but I was told that 7 pounds of rotating mass is roughly equivalent to 100 regular pounds. So yeah, if you've got heavy rims, that could be doing SOMETHING... But not all that much.

mustang5.slow

i have Ls on rear and blackies at front

mustang5.slow

bump before next class.

speedooo

map sensor issue? my friend had his unplugged and he got around 10 mpg

awdgsx96

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by speedooo &raquo;</TD></TR><TR><TD CLASS="quote">map sensor issue? my friend had his unplugged and he got around 10 mpg</TD></TR></TABLE>

Probably. The ecu isn't too sure of how much air its pulling and in you are probably running pig rich. Have you noticed poor performance?

mustang5.slow

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by awdgsx96 &raquo;</TD></TR><TR><TD CLASS="quote">

Probably. The ecu isn't too sure of how much air its pulling and in you are probably running pig rich. Have you noticed poor performance?</TD></TR></TABLE>well my TPS is missint a tooth and bogging nasty before 3k RPMnumber 27

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by speedooo &raquo;</TD></TR><TR><TD CLASS="quote">map sensor issue? my friend had his unplugged and he got around 10 mpg</TD></TR></TABLE>

would that come up on my CEL?????

awdgsx96

That bogging is probably you running uber rich and killing your mileage.

It might now throw a CEL bc the ecu is still recognizing it, but dumping fuel for alot of air there really isn't there

95vxtealhatch

If you have a TPS code, basically your engine doesn't know what throttle postition its at or how much fuel to give its-self. That could ruin your gas milage. For all your ECU knows your gas is fully depressed when really your hardly pressing on it. . . ya get my drift?

mustang5.slow

yeah cool any other ideas.????

2CAMSAM

If your car is a VX,re-pin wiring for 4 wire O2 sensor.

mustang5.slow

how about a cx

punk_0333

Yes, the cx needs to be converted from 1-wire o2 senser to 4-wire o2 sensor. Just need to add three wires, the signal wire is in the correct spot. You'll need to add the two black heater wires, and a green and white ground wire.

mustang5.slow

is there any diaphragm i can follow.??

Syndacate

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mustang5.slow &raquo;</TD></TR><TR><TD CLASS="quote">is there any diaphragm i can follow.??</TD></TR></TABLE>

Yeah, tons, google it or search on H-T.

diagram*

or "pinout"

It needs to be converted to a 4 wire O2 (so you have to buy a new O2 sensor, for a B20, which should have 4 wires), and use the plug from a B20's O2 sensor plug (the engine harness plug), then run the other 3 wires from there directly to the ECU - you can find ECU pinouts if you just search.

If you didn't hook up the additional 3 wires I'd say that's definitely your problem - I'd say it's your problem WAY before I said it's your TPS or MAP sensor(s).

EDIT:
Though your TPS could play a roll - if it's throwing a CEL for your TPS - change it out temporarily and see if it goes away.

Also, you don't NEED to put a plug in there, that'd just be the right way of doing it. If you just wanna get it done buy the B20 O2 and run the 3 wires directly to the ECU from there (bypassing the plug).

mustang5.slow

oh cool thanks man

but if any one has a diaphragm please kick it over to me cause i'm not so good with search engines.

brmiddle

jesus christ get a cavalier. u have two threads in here about problems with your car. i often wonder how people get large post counts and can't use a search function.

mustang5.slow

hey it happens.

and it just so happens that there are allot of people here who would like to help a fellow HT member just as i do

and just to let you i searched and didn't find the exact info Im looking for.

so if you are not going te technically support fellow HT members GTFO this forum you ******* jackass.

and Im sure many other HT members will Tell you the same thing if you where to stumble into their thread and type your
stupid remarks such as the one you typed for me.



Modified by mustang5.slow at 3:19 PM 7/20/2007

mustang5.slow

thanks solbrothers lol....I say somebody punches him square in the nose.

CapnKrunch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brmiddle &raquo;</TD></TR><TR><TD CLASS="quote">jesus christ get a cavalier. u have two threads in here about problems with your car. i often wonder how people get large post counts and can't use a search function.</TD></TR></TABLE>

WHY would you post on HT about solving your problems with a cavalier... this is HONDA-Tech not CHEVY-Tech....

Seriously GTFO

mustang5.slow

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CapnKrunch &raquo;</TD></TR><TR><TD CLASS="quote">

WHY would you post on HT about solving your problems with a cavalier... this is HONDA-Tech not CHEVY-Tech....

Seriously GTFO </TD></TR></TABLE>HA HA owned.

mustang5.slow

thread close.
SATISFIED.

it was the TPS and now i get a gang of miles on 6 bucks .