shinjuku

Hey Peter is the theory here that the sensor itself will give a constant AF voltage value for any temperature as long as that temperature is within Bosch's specified temp range?

edomund

No I think he means it will read true as long as the body of the sensor stays within Bosch's specs.

shinjuku

meaning that the unit must have some degree of temperature compensation programming in it?

RICE RACING

It is explained in great detail by Klaus in my LM-1 thread, but.

Basically the LM-1 will give perfect AF/Lambda readings from ambient sensor body temps up to the (or just below) the sensor body overheat temp.

When the body temp gets too high the resistance goes up and the LM-1 unit measures this as an inaccurate range (sensor outside its accuracy range) and hence it either becomes erratic in its values or if pushed further throws an error.

Pretty simple.

Rest assured the LM-1 gives perfectly accurate consistent readings from ambient temps through to just below overheat temps (innacurate sensor temp range), these are explained in the other thread.

edomund

rice Are you running one now?
I thought you were running a Techedge.

DrifterS4

Where are those pictures where someone made a custom exhuast clamp?

Chronos

what happens if the sensor gets too hot?

EDIT: oops, didn't see page 2

wReX

iTrader: (6)

Innovate is designing a new bung that has a heat sink already connected to it. I've got my LM-1 sitting here waiting to go in and hopefully will be trying out this new piece along with it. I'll let everyone know how it goes.

h22a

I have a techedge for about 10 mths. it works fine for me use a ntk o2 with leaded fuel retard timing 20-25 degrees ATDC to clean it off before races, works for me, only problem to get it to read below 10.3 afr, not that its usable down there. thanks RON

rdavidsrx7

my lm1 works fine for me, hooking it up to the datalogit tommorow, so we'll see how that goes....

Bob

RotorJoe

Wow, Alot to read through and I am sure I missed a few things. Anyways, I bought the LM-1 WB w/ the bosch sensor. I do not have the heat sink dealy that they sell either. I have updated the software/firmware from their site.

I have had no problems with mine. The sensor is back down on the DP some. About 8 inchs behind the stock one.

I have yet to hook it into the PFC and datalogit but from all the info I have seen it should just plug right into on of the 0-5volt inputs on the datalogit. I will do this soon.

They have great customer service. My unit had died on me shortly after I bought it. I sent it back, warrenty covered it. They shipped it back to me a few days later. The unit was down about a week and a half. Could have been quicker if I didn't use ground shipping. They stated a cap fail (???) and this was causing me to blow the fuse in the sig lighter plug.

Either way I am very pleased with the unit. I had thought about moving the sensor up the DP some, but with others having heat problems I will probably leave it where it is.

I feel it is still pretty accurate down the pipe about 6-8 inches. I am seeing 10.5 fuel ratios under boost. If it was higher in the DP I may then see something like a 10.3 ratio, I am not sure.