Troubleshooting an AFR gauge/sensor, l**Finally Figured out my issue** |
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Troubleshooting an AFR gauge/sensor, l**Finally Figured out my issue** |
jim_hoyland |
Oct 6 2015, 03:17 PM
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#1
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Get that VIN ? Group: Members Posts: 9,319 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California |
I installed the Innovate MTX L in 2012 and it worked fine until June of the year when it would go into the E8 mode. The techs say this means a faulty sensor. I replaced it and have continued to have erratic activity.
For example: it may run in an acceptable range for a while, then suddenly go to reading either too high or too low that are unreasonable; it sometimes freezes on a reading, and at other times it goes to E8.If I turn the ignition off and restart the engine, the gauge goes to a normal reading, then goes through the same routine. This sensor is 3 months old, car is in perfect tune. I changed the 12v power source, used a different ground, and recalibrated several times Anyone had experience troubleshooting these AFR's ? UPDATE_It was caused by contamination ! I have been adding MMO to my my fuel over the past year. When I ran out of MMO, I just ran straightgas without MMO. The AFR sensor reverted to normal operation and all is good. Interesting...you'd think the MMO would burn off or dissipate by the time it reached the exaust. Now I;m wondering if the MMO caused exhaust smoke upon downhill deceleration ? |
era vulgaris |
Nov 8 2015, 08:36 PM
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#2
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J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
So just an update...
As I said I would do earlier in this thread, I've done nothing regarding the E8 error code on my MTX-L. About a week and a half ago it stopped throwing the error code, and it's been working perfectly fine since then without any problems or error codes. I predict it will continue to work perfectly fine until next spring when ambient temps start their large swings again, at which time it will probably start throwing the E8 code again, and I will do nothing again until ambient temps stabilize and the error code stops. So if your MTX-L throws an E8 error code, basically just wait a few weeks and the problem will go away. Don't waste $100+ on a new sensor. At least that's my experience. YMMV. |
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