200sx s13 CA18DET - plugs and filter

JoKeR** · Post by JoKeR** » Tue Jul 06, 2010 11:53 am

is it true that u can reset ecu just by disconnecting the battery for more than 10 mins? read this on another forum....

Draco · Post by **Draco** » Tue Jul 06, 2010 12:01 pm

yes....

JoKeR** · Post by JoKeR** » Tue Jul 06, 2010 12:09 pm

so if i do that then thats one of my probs solved?

Draco · Post by **Draco** » Tue Jul 06, 2010 12:14 pm

That depends whether your standard fuel pump will supply enough fuel for the new air flow....

JoKeR** · Post by JoKeR** » Tue Jul 06, 2010 1:03 pm

hopefully it does, im trying it now...

Daniel · Post by **Daniel** » Tue Jul 06, 2010 2:50 pm

JoKeR** wrote:o ok i see thanx man. its a T28 turbo that i have in now. u think 0.9-1.0 bar will be good? do i take the ecu to a technician to get reset?

Dude do not increase your boost if your running a T28!!!! it flows way more at 0.8 than a T25 at the same boost pressure.

And no, resetting your ECU isn't going to do bugger all. S13's don't have learning ECU's in them.

you sure you running a T28?
I'd get a Walbro fuel pump, a manual boost controller and well not sure what you'd do ecu wise, just getting a uni-chip might make sure you don't run to lean if they map it.

JoKeR** · Post by JoKeR** » Wed Jul 07, 2010 9:21 am

ja im sure im running the T28... i dont have that much money so i gota sort these probs out with not spending too much. gonna do my spark plugs today which wont cost anything and then ima look around for the fuel pump.
my turbo only at 0.6bar, should i leave it like that?

Draco · Post by **Draco** » Wed Jul 07, 2010 9:43 am

What have you done yesterday?

JoKeR** · Post by JoKeR** » Wed Jul 07, 2010 10:02 am

nothing really, just "reset the ecu" and went to see if it made any difference....
i think ima get my car serviced before i do anyhting, coz it needs a really good service.

Draco · Post by **Draco** » Wed Jul 07, 2010 10:17 am

Did it still splutter....if it did....get the gaps down to 0.6 and see what it does, as Daniel said, the turbo does flow more, if you leave the boost where it was, set the gap of the plugs and reset the ECU sothat all preveous memory of AFM is relaced by new data it should give more fuel because the AFM reads more airflow.

The ECU does not learn as persay....but it does "listen" to all the sensors to output what fuel and timing to adjust to....resetting the ecu wipes all data that there was and new data replaces that with new data from the sensors.

To increase your boost you need to follow the steps i and others have mentioned earlier, larger volume fuel pump, smaller spark plug gap, your ecu should now be able to adjust to the new air flow easier.

Every car responds different, when you do push the boost you need to take it bit by bit, look at what the car does, some guys get it up to one bar, some just manage 0.8

JoKeR** · Post by JoKeR** » Wed Jul 07, 2010 10:22 am

the splutter decreased a bit ja, gona do the plugs today and see what happens. ill let u guys know.
thanx for all the help guys

JoKeR** · Post by JoKeR** » Wed Jul 07, 2010 2:27 pm

ok so i did the plugs, the spluttering has gotten less sort of.
i rode it untill the car was warm and it seem to get better.
but when the car idles it runs and then almost sounds like "hits a bump" (cant explain any other way). im gonna ride it again later and see if it still happens.
gave the car a lekka clean now, will upload the pics before the respray and after.

Charlvdw · Post by **Charlvdw** » Wed Jul 07, 2010 2:30 pm

You need to up your fuel pressure.

JoKeR** · Post by JoKeR** » Wed Jul 07, 2010 2:37 pm

how do i do that? do i need a new fuel pump?

Charlvdw · Post by **Charlvdw** » Wed Jul 07, 2010 2:55 pm

Start by getting a adjustable fuel pressure regulator with a gauge that way you can see what you are working with. The gauge will also tell you if your pump can keep up.