jdm91CrxSi

i really need some help..

went out tonight 94 civic dohc zc-t.. car running perfect as usual.. went on the highway and dropped it a gear.. started to get into it and my rpms/speedometer were jumping and my car just bogs..

so i pulled over tightend my spedo sensor, umplugged my battery cable for a couple min then put it back on.. same problem.. alternator is also good! WTF!!

Can this be a bad distributer..

Update: replaced rotor and cap, sparkplugs, and ecu with same tune

Please let me know this is my baby!


Modified by jdm91CrxSi at 7:59 AM 9/13/2008


Modified by jdm91CrxSi at 4:17 PM 9/13/2008


Modified by jdm91CrxSi at 8:39 AM 9/14/2008

jdm91CrxSi

up

jdm91CrxSi

1 more time..

i know someone has ran into this problem before!

jdm91CrxSi

bump b4 work

19ekcoupe96

sounds like a problem with the ecu to me....did it get wet??

jdm91CrxSi

nope, changed out from p75 to pr4 and used my chip that i got tuned on.. same problem.. I think its the dizzy.. Someone has to know~

SDHonda153

Mine does something kinda like that. Except its only my tach that does it. I've got a P28 with S300 in a 94 Ex and when under boost the tach starts jumping all over the place starting around 5,500 and higher. Yet if I have my laptop plugged in and watching it on Hondata it shows it going smooth all the way up. So I don't think its the ECU necessarily. Sounds like something else to me. But I could be wrong, that's just my experience.

jdm91CrxSi

well.. just back back from the parts store.. changed out the the distributor, changed the chip i got tuned on into another ecu, changed my sparks, and made sure sure my tps wasn't loose!..

still doing it mainly under throttle

jdm91CrxSi

think it's my ignitor, so i just ordered a new dizzy..

anyone think of anything else?

96redexcivic

It really sound like your ecu not tuned right? but i could be wrong, Did you have the battery check just incase?

jdm91CrxSi

well i been driving it daily for about 3 months now..

so i know its not the ecu.. and the battery is brand new..

and im getting good constant 14v+

jdm91CrxSi

posting for days and still no one! don't be lazy!

Im throwing no codes and running out of things to try@

grandtheftlunchbox

Do the RPM's actually jump, or does the tach just freak out?

jdm91CrxSi

rpms and speedo jump then freaks!

jdm91CrxSi

up up up

Ricey McRicerton

Does it do this all the time or only under load (when you're driving)?

grandtheftlunchbox

sounds to me like you have two different problems on your hands... you probably have a bad cluster and a separate issue with a sensor if it bogs down. i've never heard of this happening before though so i'm not real sure. sorry i couldnt really help.

jdm91CrxSi

well this morning i let it warm up to op. temp. ..

while i was driving to work I started low like 2k in third..

I let it build boost, and around 4,500k it broke up and then the rpms started to jump and the speedo went crazy.. But it's throwning no codes..

but can my cluster cause it to bog, or it's throwing my speed off, so my two step reads 0 mph?


but yea under load

Modified by jdm91CrxSi at 8:29 AM 9/15/2008


Modified by jdm91CrxSi at 8:58 AM 9/15/2008

jdm91CrxSi

up up

jdm91CrxSi

bump for top

Ricey McRicerton

For what it's worth, when my car was running SUPER rich right after I boosted it, it did something similar. Just keep PM'ing me and we'll try to get it figured out.

Ricey McRicerton

I've also got a few questions. It only does this when you're on the gas correct? Full throttle? Partial throttle? In gear but out of the gas? Out of gear coasting?

Ricey McRicerton

Pull the plugs and see if they're all dark. I swear that sounds like too much fuel.

edit: are you using narrowband output froma wideband for your ecu input or are you using a factory 02 sensor for your 02 input to your ecu?

jdm91CrxSi

2 seperate bungs, one for wideband one for stock 02

do you think that its maxing out my injectors, i have a resistor box already..

jdm91CrxSi

when i pulled the plugs yesterday they where white and black.. which was weird..

mabye on my tune he put a safety where it would let it dump to much fuel?