Mtx-l plus erratic behavior
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Hey having some issues with my MTX-L plus WB. Any help/guidance would be much appreciated. I currently have the WB installed in the stock position. I was only driving it on the weekends to familiarize myself with the MS. Due to a family members jeep going out I loaned them my DD an started driving the 99 with the MS. Was driving fine for about 4 days(during that time autotuning to an from work until I wasnt getting anymore cell change). On the 5th day got an E8 error code as I was pulling into work. On the way home had no issues and for the next two days no issues. long story short and not related but 3rd day after E8 the water pump went out an so I replaced it over the weekend. During this time I had the battery disconnected(shouldn't matter). Anyway. Started up an drove fine for a day then randomly started freezing up/pegging full lean or rich and staying stuck there for awhile. It appears to be heat related but I was wondering if anyone could take a look at the log an give an opinion. It has not given an error code again just the erratic behavior. I cant tell if its noise or bad sensor.
Summary: MTX-L plus. 12v wired with fuse an relay from battery. Ground going directly to MS3. Stock location o2 sensor. No error code. So results of my searches an your opinions on what route I should take if it is in fact the sensor. 1) Heatsink like posted in this thread https://www.miataturbo.net/diy-turbo...eadings-93315/ 2) Weld the 1" bung it came with further down stream(have a mig so can do myself) 3) Throw on aftermarket header(obx i think, pulled off donor) I have laying around with bung further down. Turbo is still a month out an want to get these FF in an "tuned" before then. Don't want to buy another sensor until I know for sure its bad. Thanks |
Try recalibrating? :dunno:
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Awww shite thought I covered everything I did... Yeah I recalibrated it twice. No change. It does appear to show acurrate readings while at idle after it "unfreezes" not sure if that means anything..
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If the sensor is bad heat didn't kill it. EGT's on turbo cars are much much higher and not necessarily any further down stream than the stock location.
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What does the manual say the E8 code means?
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Originally Posted by sixshooter
(Post 1500493)
What does the manual say the E8 code means?
This is very similar to what mine is doing now but with no E8 error |
Well there you go. Even the manual says it would only happen at WOT if it were overheating. All signs point to a new sensor.
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Originally Posted by SpartanSV
(Post 1500546)
Well there you go. Even the manual says it would only happen at WOT if it were overheating. All signs point to a new sensor.
Thanks again |
It's right there in the manual....
Without having an O-scope and knowing what to look for with it you won't get a more definite answer, |
One thing they probably dont say in the manual is to never let the sensor pre-heat without the engine running. Its really easy to do when you have it wired to ignition. Letting it heat up while you sit there goofing off, then when you star the engine the condensed water from a cold engine hits the sensor and kills it.
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Make sure you weld that new bung for turbo use 3 ft from where the turbo will sit.
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solution to all of this: toss the innovate in the trash where it belongs and get an aem.
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All the threads I see regarding MTXL or LC1/LC2 is why I sold my new one...mostly
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Originally Posted by 18psi
(Post 1500627)
solution to all of this: toss the innovate in the trash where it belongs and get an aem.
Originally Posted by brainzata
(Post 1500641)
All the threads I see regarding MTXL or LC1/LC2 is why I sold mine new one...mostly
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AEM has a screen refresh rate slower than calculator
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Yeah, its a huge problem that never ever affected anything or impacted in any way on the 600+ cars I've tuned. YOu're right
lol |
Originally Posted by Full_Tilt_Boogie
(Post 1500647)
AEM has a screen refresh rate slower than calculator
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Originally Posted by 18psi
(Post 1500652)
Yeah, its a huge problem that never ever affected anything or impacted in any way on the 600+ cars I've tuned. YOu're right
lol |
My MTX-L would peg full lean and come back on at idle, new bosch sensor fixed it, got it at pepboys of all places, in stock for a decent price ($45)
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Originally Posted by 18psi
(Post 1500652)
Yeah, its a huge problem that never ever affected anything or impacted in any way on the 600+ cars I've tuned. YOu're right
lol why even bother using a gauge? |
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