could it be the rusted piping with holes ?

headers

intake

or what

any suggestion

and **** idles Low

and its A D15B vtec 90 civic 4door

 

Too vague.

What mods do you have, last tune-up, do you drive like a mad-man, what ECU, any Check Engine Light, any other issues with the car than what you listed, etc?

 

i drive normal

i just gotten the car the first of February No tune up yet or nothing

check engine comes on after 10 to 15 min of driving ...

PM6 ECU ..

 

could it be the Map sensor ?

 

if you just got the car i would do routine maintenance and replace all the filters, fluids, etc. usually when people sell their cars they stop caring about it, that was the case for my car when i got it last year

 

Alss, pull the code from the ECU (search, faq, or google for this if you don't know how to do it) and post what code you are getting.
That may give you a good idea what sensor is tripping which may be leading to poor gas milage.

 

a typical reason for cel to come on after a few minutes of driving is the o2 sensor, which also would be a reason for bad gas millage

 

the code beeps 5 time ....i think map sensor ..idk but this **** idles low too

. . ... < thats the code

 

like everyone is telling you... standard tune up stuff. air filter, oil filter, pcv valve, oil change, plugs, wires, check your air pressure in the tires, ect.

 

yeah ima do them tune ups.....

one more question How do we clean the Map sensor ..

 

is it two long flashes followed by 3 quick flashes? That's code 23.

 

Where is your map?
Stock engine location is on the firewall.
Most motor swaps have it on the throttle body, BUT some swaps use the firewall one still and just not hook up the one on the throttle body.

Anyway, you can't do much to clean the firewall mounted MAP.
The throttle body one you can clean the port out and that's about it.

 

yeah thats right

 

i just took it to my friend shop.......... he check the timing ..timing was coo ...he said it runs rich.....gas problem might be the map sensor or He said somethign blah blah 02 sensor forgot what he said ....but ima just Sea foam car do Oil and oil filter change and spark plug !?!?

 

Mine is also doing same thing the check engine light comes on after a few minutes of driving but it is flashing a code 27 could anyone help me out with this? The car is getting bad mileage, and it is low on power a bit too. It knida has a flat spot in it. My car has the stock d16a6 in it.

 

27?
Can you check that again - that code doesnt' seem to exist in the troubleshooting info.

 

It flashes one. . . one. . . then seven fast. . . . . . . then 17?

 

Check for Vac leaks.

 

DUDE ME TO in getting like 20 mpg, i got more in my 2.0 eclipse, and my motor is WAY smaller now wtf good luck bro

 

Stock gauge cluster?
Does your speedo work?

Without having seen it, it could be 1 and 17. Or 20 and 7.
Both are bad.

This shoudl be taken to a seperate thread.

 

First of all give us all your information. What ECU are you using?

Could be a bad plug wire. With the car running pull of one plug if it slow down and stalls, that's a good wire. If you pull off a wire and nothing happens, you have a bad wire or plug.

 

Check injectors too.

 

he is using a pm6 in with a obd1 vtec swap that should tell you guys something right there,

hes using teh wrong o2 etc that explains it right there convert the car to obd1 with the right ecu and you should get better mpg.

 

im having a similar issue and my friends at the shop are saying map/o2 sensor
see ive installed a new intake and we figure that the car doesnt realize how much air its getting now so its putting thru too much fuel for the fuel:air ratio

keep update with what happens please, i havent fixed mine yet

 

+1

You can inflate tires to max psi (whatever the manufacturer prints on the tire) it'll increase your MPG.