no ehaust sensors

skez · Post by **skez** » Mon Jan 11, 2010 8:46 pm

i have bought a 86 et with no 02 or the other sensor in the exhaust? wat should this cause the car to do??

it runs buts sits on high revs and smokes alot. before i notice the sensors missing i just assumed the engine was stuffed but now im thinking maybe having the sensors gone is making it rich which is causing smoke and high revs?

Cherry Boy · Post by **Cherry Boy** » Tue Jan 12, 2010 5:11 am

Welcome to the forum mate, doesn't really make any difference. the car will run fine.

The ET's ECU's doen't fuel as per o2 sensor. Im sure someone will write a long ass thread about this for you...cough cough* "E"

skez · Post by **skez** » Tue Jan 12, 2010 10:09 am

true wo why are they needed then?

Callumgw · Post by **Callumgw** » Tue Jan 12, 2010 11:20 am

they apparently turn the aircond fan on and off for extra cooling. But not needed the car will run fine without it. (this applies to pre 86 car in Australia!!!!)

C

Android 360 · Post by **Android 360** » Tue Jan 12, 2010 1:32 pm

My setup doesn't have one. there was no provision for one either.

skez · Post by **skez** » Tue Jan 12, 2010 1:40 pm

my car is an 86 and if the engine is stuffed im putting my other engine in which is a 87 model and both my cars have 2 sensors on exhaust next to the turbo

Post by **shanec86** » Tue Jan 12, 2010 4:56 pm

Callum there were some models with O2 sensors as well as temperature probes in the exhaust. Skez is the smoke black though? are you sure its related to fuel?

unique_ET_N12 · Post by **unique_ET_N12** » Tue Jan 12, 2010 5:27 pm

Find out from who you brought it off, how long it's been blowing smoke for and or what he thinks the smoke is from. hopefully air/fuel ratio and no problems.. most likely been thrashed though, mine was when I first brought it in 2007 the guy just hammered it into the ground. Bone dry in the sump, no oil and the turbo had shaft play

skez · Post by **skez** » Tue Jan 12, 2010 5:35 pm

shanec86 wrote:Callum there were some models with O2 sensors as well as temperature probes in the exhaust. Skez is the smoke black though? are you sure its related to fuel?

yeh it is definatly an 02 sensor and it also has the temp sensor and i cant really remember wat colour the smoke was but it was reving high aswell i cant start it unless i put the turbo back on as i pulled it off beacause i was changing the engine then i noticed the dump pipe had no sensors as they used a different one to suit the t25 turbo, and i found the wires that are meant to go to the 2 sensors so the car is deffinatly meant to have them

skez · Post by **skez** » Tue Jan 12, 2010 5:39 pm

i really thought that pulling an o2 sensor off a car that is meant to have it would make it run rich and maybe rev more as i thought this was the whole point of having the sensor there, maybe some of u have older models that dont have 02 sensors

unique_ET_N12 · Post by **unique_ET_N12** » Tue Jan 12, 2010 5:42 pm

revs could be due to air flow metre air/fuel setting..
idle setting or ICV valve maybe if wiring is the problem or u had lights on or something

Panda_ET · Post by **Panda_ET** » Tue Jan 12, 2010 5:58 pm

The o2 sensor on these are not there for it to be a Fully closed loop design where it changes its fuel curve by a fair amount dont give this ECU too much credit haha its a very basic unit when it comes down to it. You really need to work out the Smoke colour before worrying about anything else. bLack /blue/white.

Also why did you change the engine was it possibly blowing oil out the exhaust? oil still in the exhaust mebbe? mine did that when I changed the T2 to the T25 it smoked for a week or so before it settled down

unique_ET_N12 · Post by **unique_ET_N12** » Tue Jan 12, 2010 6:07 pm

Yea and mine was never connected, not needed with standard computer doesn't react off it

Panda_ET · Post by **Panda_ET** » Tue Jan 12, 2010 6:10 pm

If its black fuel smoke then when people go WTF mate just say its a fully hecktic Jap spec Tune lol Fuel smoke is for cool peeps just ask any wanker..Oops I mean drifter

Damo · Post by **Damo** » Tue Jan 12, 2010 9:38 pm

Panda_ET wrote:If its black fuel smoke then when people go WTF mate just say its a fully hecktic Jap spec Tune lol Fuel smoke is for cool peeps just ask any wanker..Oops I mean drifter

^^^^^ Jap spec for sure.

Those buggers like to fuel them HARDCORE! Every single import from Japan which has been tweaked, has the massive soot stain over the rear of the car. Nutbags.

Damo