So, I overheated my wideband....
08-01-05, 09:48 AM
#1
Haven't we ALL heard this
Thread Starter
So, I overheated my wideband....
Was kinda intersting...we were cruising on the highway in closed loop mode and the EGTs were ranging from 810 - 860.
I was watching the wideband and all the sudden it dipped from 14s to 11s...I was like dude (1987rx7guy) we need to work on these maps again...
But I let off the gas and it took for ever to react to show free air. (fuel cut on decel)
Yeah, turns out my sensor over heated! And that is with it at the end of the RB 3" downpipe.
Freaking rotary heat
I am gonna try that poor mans heat sink and get small sheet of brass or copper and put a hole in it...then slip the sensor thru it.
Anybody else over heat their widebands?
James
I was watching the wideband and all the sudden it dipped from 14s to 11s...I was like dude (1987rx7guy) we need to work on these maps again...
But I let off the gas and it took for ever to react to show free air. (fuel cut on decel)
Yeah, turns out my sensor over heated! And that is with it at the end of the RB 3" downpipe.
Freaking rotary heat
I am gonna try that poor mans heat sink and get small sheet of brass or copper and put a hole in it...then slip the sensor thru it.
Anybody else over heat their widebands?
James
08-01-05, 10:02 AM
#2
Locust of the apocalypse
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Ummm.... No....... My LM-1 has yet to overheat..... its on a standard O2 Bung on the RB 2.5 in the stock location....
its at the END of the downpipe..... what angle is it at????? I know it shouldn't be mounted lower than 9 or 3 oclock...
its at the END of the downpipe..... what angle is it at????? I know it shouldn't be mounted lower than 9 or 3 oclock...
08-01-05, 10:25 AM
#3
Haven't we ALL heard this
Thread Starter
Yeah, it is mounted at the proper posistion...
The angle of the sensor is to protect it from condensation inside the exhaust on first start ups since the sensor is heated.
I really dont think it is from the one time blast of heat...I think the sensor just heat soaks....and my DP is wrapped.
It is crazy though that your sensor has not over heated. Does it have an over heat warning?
James
The angle of the sensor is to protect it from condensation inside the exhaust on first start ups since the sensor is heated.
I really dont think it is from the one time blast of heat...I think the sensor just heat soaks....and my DP is wrapped.
It is crazy though that your sensor has not over heated. Does it have an over heat warning?
James
08-01-05, 10:34 AM
#4
got paint?
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RXcitng overheated nik's wideband while trying to tune his car after a freash rebuild. It was so rich there were alot of flames and eventualy it just overheated. It was fine the next dat though.
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08-01-05, 11:31 AM
#10
Haven't we ALL heard this
Thread Starter
Originally Posted by SonicRaT
I've never overheated mine, mounted at 11 o clock on a 3" downpipe about 4" off the back of the turbo.
TE 2A0
TE 2A0
Did you build that one your self? I have the DIY kit coming to me...
James
08-01-05, 11:36 AM
#11
Super Raterhater
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Originally Posted by Wankel7
Are you running an EGT?
Did you build that one your self? I have the DIY kit coming to me...
James
Did you build that one your self? I have the DIY kit coming to me...
James
08-01-05, 12:17 PM
#12
Originally Posted by YearsOfDecay
Ummm.... No....... My LM-1 has yet to overheat..... its on a standard O2 Bung on the RB 2.5 in the stock location....
its at the END of the downpipe..... what angle is it at????? I know it shouldn't be mounted lower than 9 or 3 oclock...
its at the END of the downpipe..... what angle is it at????? I know it shouldn't be mounted lower than 9 or 3 oclock...
Last edited by The Griffin; 08-01-05 at 12:22 PM.
08-01-05, 01:44 PM
#13
Locust of the apocalypse
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I think it has a lot to do with the NGK sensor.... Not that its bad... just different from the one that the LM-1 uses.
Dunno.. My brain is fried about O2 sensors after trying to find the right settings for the Bosch 13190 sensor i bought for closed loop mode last week.. Nobody has the output specs.. NOBODY.. so finally I said screw it, put it in set the target at 650 and drove.. seems to work nice!!!
Dunno.. My brain is fried about O2 sensors after trying to find the right settings for the Bosch 13190 sensor i bought for closed loop mode last week.. Nobody has the output specs.. NOBODY.. so finally I said screw it, put it in set the target at 650 and drove.. seems to work nice!!!
08-01-05, 05:11 PM
#14
Haven't we ALL heard this
Thread Starter
Originally Posted by The Griffin
Can you elaborate as to why the sensor angle can contribute to a sensor overheating?
The angle of the sensor is to protect it from condensation inside the exhaust on first start ups since the sensor is heated
08-01-05, 05:50 PM
#15
Mad Man
I'll be road racing this weekend with my V1.5, we shall see. I need to get that L1H1 out of my 7 and into my Supra. Thaen I'll get a differentr WB for the 7, one with a cheaper sensor LOL.
08-01-05, 07:18 PM
#16
HAILERS
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You sure your problem isn't a voltage problem? And not a sensor problem? Maybe a lack of current. It might light up on the display but be not getting enough current. Try using it with no other accessories turned on...meaning light, fan, a/c etc. Or post a thread on their site. I forget what that q and a site is called at the moment. The TechEdge site but not *TechEdge*.
Here: http://autos.groups.yahoo.com/group/oz-diy-wb/
Here: http://autos.groups.yahoo.com/group/oz-diy-wb/
Last edited by HAILERS; 08-01-05 at 07:22 PM.
08-01-05, 08:02 PM
#17
Haven't we ALL heard this
Thread Starter
Yeah rather sure....
It only happened after prolonged crusing at over 800C EGTs...
Let it cool down some it would calm down.
It has gotta be a combo of the NTK sensor...along with my DP being wrapped up tighter than a cuban cigar
James
It only happened after prolonged crusing at over 800C EGTs...
Let it cool down some it would calm down.
It has gotta be a combo of the NTK sensor...along with my DP being wrapped up tighter than a cuban cigar
James
10-15-05, 08:54 PM
#18
Haven't we ALL heard this
Thread Starter
Well, I had been searching for a sheet of copper so that I could make a heatsink for my o2 sensor.
Basicly, drill a hole thru the copper and put the sensor thru it then put the sensor in your exhaust. And the copper will pull the heat away from the sensor.
I had been looking for a sheet of copper for a long while.
I went to the Hobby Lobby today and they sell a 5"X7" sheet that is 0.016" thick for $3.99.
James
Basicly, drill a hole thru the copper and put the sensor thru it then put the sensor in your exhaust. And the copper will pull the heat away from the sensor.
I had been looking for a sheet of copper for a long while.
I went to the Hobby Lobby today and they sell a 5"X7" sheet that is 0.016" thick for $3.99.
James
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