lm-1 Problem [Archive]

rs250nut

01-11-2009, 20:38

Im having trouble with unstable readings,I have the live and the earth wired straight off the battery with an inline fuse, the car holds boost and I have replaced the sensor, could I have a problem with fueling any ideas? Failing that would any one be able to test it?

rs250nut

02-11-2009, 19:57

No ideas then chaps

Brigsy

02-11-2009, 23:47

What do you mean by unstable readings? i had a problem with odd readings on mine when i ran the lambda wire near the coil, make sure its routed away from there.

rs250nut

03-11-2009, 08:42

What do you mean by unstable readings? i had a problem with odd readings on mine when i ran the lambda wire near the coil, make sure its routed away from there.

When im flat out the numbers are all over the place going up to 25 or more then back down to 9 jumping all over the place. I cant be running lean with 135 main, .9 ac standard first stage and 1.4 second at only 21psi.

allanr5gtt

03-11-2009, 08:58

have you try it at lower boost level?

rs250nut

03-11-2009, 09:38

have you try it at lower boost level?

Not yet because I cant see it making any diffrence. It was showing readings of 25 plus on pod runs and if the afr did go that high the engine for sure would have gone bang.

James5

03-11-2009, 13:04

If your getting unstable readings and it is directly connected to the battery as a permanent install I would be looking at re-calibrating the sensor.

If you have another Lambda sensor spare or know someone local who has one spare try that out more than likely a faulty sensor. The LM-1 unlike the LC-1 has very little that can go wrong as it is an enclosed box with only the earth, power leads & sensor cable coming out of it.

Logg

03-11-2009, 14:05

I had this problem and it went away when I re routed the wire to the sensor! as I think it was picking up interference for other wires in the engine bay!

rs250nut

03-11-2009, 16:51

If your getting unstable readings and it is directly connected to the battery as a permanent install I would be looking at re-calibrating the sensor.

If you have another Lambda sensor spare or know someone local who has one spare try that out more than likely a faulty sensor. The LM-1 unlike the LC-1 has very little that can go wrong as it is an enclosed box with only the earth, power leads & sensor cable coming out of it.

I have re-calibrated both the old sensor and the new one with no avail. I will try re-routing the cable first and see if that helps. Cheers for the suggestions chaps.

Os8472

03-11-2009, 17:16

I had this problem and it went away when I re routed the wire to the sensor! as I think it was picking up interference for other wires in the engine bay!

:agree: