Tommyyy

RPM needle jumping around on boost
mkk guys i need some help...

on boost rpm needle dances around in sync with the boost, when rpm needle jumps, the boost laggs.

75% of the time it jumps 25% it doesnt.

n/a mode rpm needle works perfect.

When i record a run on hondata, it shows the needle working perfect and boost constant when the actual needle jumps as well as the boost.


What do you guys think ?
Im thinking, that the only thing boost and the rpm needle have in common are something electrical in the distributor, so maybee have "something" wich i dont know wrong with my distributor...
if you guys think the same, would you know what i could test, or replace in my distributor ? Or have any other idea's

Thanx a bunch guys

DSeriesBeeKilla

you have either a bad speed sensor or the pins in the speed sensor clip or wore out....needle jumps around and you can feel my car lag when this happens...i'm not turboed though.

GRant

Tommyyy

speed sensor huh, is there any way i can test my speed sensor to make sure thats it ? where is the speed sensor located ? is it expensive/cheap ? were can one be bought ?

Thank-you

Tommyyy

hey, the speed-sensor is for the speedometer not rpm

pennies_hatchie

iTrader: (1)

check your ignition system (distributor, spark plugs, spark wires, etc), mines did the same thing when i was on the highway, it would jump from 4000 rpm to 5000 every other second, turns out my distributor was coming loose and i screwed it back in, never happened again.

Tommyyy

oh really, kool
I took my distributor off and tightend it all really tight and its still doing it
what in my distributor could be causing this, what should i replace ?
Thanx

Tommyyy

What do you guys think about the ignitor inside the distributor ? do you think that could be my problem ? Also , would you guys know how to test my old ignitor to make sure that thats the correct part i need to replace ?

Thanx

HXMan

I had the EXACT PROBLEM!

Sometimes its ok...but sometimes its not. It seems to be boost related, but it isn't.

All the problem was with my car was a loose ground. Check the one at the thermostat. It comes off the wire harness, and connects to the thermostat housing. Mine was loose, and once I tightned the connection, my car ran perfect! Check the other engine grounds too.

Tommyyy

sweet thanx, im on it, ill let ya know how it goes
thank you, isnt it soo annoying...

Tommyyy

omg ur a life saver buddy, im not posative yet but , okay i looked at the grounds, the thermostate one was fine, i looked near the radiator one, and bammm about 4/5ths of the wire waz sheared off, thats the problem i bet !!!!!!!!! sweet, imma fix this up and let ya'll know how it goes, thanx again...

HXMan

I had that **** for like 3 weeks before I got rid of my turbo.(dumb, I know)

I replaced the ICM in the distributor(160 bucks), and that didn't fix the problem.

Couple days later it was working great, I could boost with no problems...it was raining and I hit full boost in 2nd. Bad wheelspin, and in most hondas it seems if you get spin in the rain, you soon start to hop bad. Thats what happened...and then I started having the problem again. Leading me to believe it was a loose connection somewhere.

Too bad I didn't get it fixed till after the turbo was gone.

Tommyyy

mmk, i just fixed her up with a new wire and connectors, and took her for a ride, BUT its soo dark and rainy and trafficy outside i didnt get a chance to get on it, and the couple chances i did, the tires just kept spinnin out, so ill see whats up tommorow with it...

HXMan

New wire and connectors??? Why did you do that?

Tommyyy

why did i get a new wire and connectors for the main ground ?

because it they were bad...

Im starting now to think that it is a leak in the piping seeing as theres alot of it, im going to check that as soon as i have time...

heres a pic of my new enclosure for 3 10's behind my seat in my del sol = )

greebler

use some dish soap and a little water to check for leaks in the piping connects. u see bubble, u got leak.
make sure you wash it off when finished

Tommyyy

i dont get it...

Tommyyy

i wouldnt wanna get soap and water into the intercooler though i dont think, or the bypass/blow-off valve eh ?, i think ill just make sure that all the clamps and such are snug and tight.

Agent STFU

I've had similar problems, too, and it was the ground, just like the guy before said. Once, I had a problem with bad connections at the relay (because of how I had my hot wire for my amp wired), but this wasn't in the Honda. Good luck with your problem!