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Current ads can still be posted in to close out current sales, but no new posts can be made whilst we do some pruning. Hi All, Noob EFI question. Yes I have searched, post's and threads, yahoo'ed and googled. And got sfa except breif mention that 'Matrix' mode is for fine tuning. The short story: Always screwed around with Carby's, this is my first EFI conversion. SV21 Camry, 3sfe.
Queried its operation, econermy and power, and he said it would be a much better result on all accounts. Well he'll be wrong.
Yes, youll have more power if tuned correctly, but youll loose economy. And probably a decent amount of it. Microtech's do not have the tuning resolution, decent idle control or closed-loop mode, and a few other features to get good fuel economy (these features being standard in factory and newer aftermarket ECUs). Also be prepared for some pretty average drivability (bad idle, poor cold/warm starts, poor throttle pump response, etc) from the Microtech, even with many many hours of tuning on a dyno. Sorry, but Microtech's are pretty much the worst aftermarket ECU there is for a daily driver car. Yeah, sorry to give you the bad news Basically Microtech are still selling ECU's that were designed almost 10yrs ago, and hasnt changed much since. They majorly lack features compared to newer ECU's.
They are still OK for racing cars, but are pretty horrid for street cars for the reasons i mentioned before. MT also give crap after sales support, and youll need to send it back to them for some configuration changes. Changes which most other ECUs handle in software setup. The only thing MT's have going for them is that they are cheap.
Well parts are, the prices of the hand controller & laptop adapters are ridiculous considering there is only $10 worth of parts in them. I have one in my GT4. It works 'ok', but thats only after almost 12 months of continuous tweaking of settings.
There are things i still just cant get right due to the MT's limitations Ive tuned as much as possible for economy without loosing drivability. I get 14L/100km driving normally around town, which isnt bad compared to a GT4 with factory ECU, but i know with a decent aftermarket ECU it would be a lot better. As for the second part of your question. This is another reason why MT's are crap. They are sold to you setup for a specific type of engine. To use the MT on a different type of engine with different crank/cam/dizzy triggers youll have to send the unit back to MT, and have them reconfigure it. Of course, they will charge you for this, and take xx weeks to do it.
As for the temp sensor, yes, thats the one. So Microtech are crap for daily drivers?
WTF, and I thought buying Austraila made could only be a good thing. China/Seppo land here I come erghLOL! There are plenty of other Aussie ECU's available. Adaptronic, Haltech and EMS all make very well priced computers that will do a great job (when tuned) of running a street car engine.
Microtech - Area is for. Getting my LT10S RX7 dyno tuned next week. By Samito Built. 3,414 ltx-10 system manual. 08-18-13 02:08 AM by KAPT.SKUIM.
They are much better priced than any Yanky stuff too.I laughed like fuck a few weeks ago when I saw an Ebay add for an EMS 8860 'selling because I've changed to a Microtech because that's what my tuner is familiar with (or words to that effect).' Changing tuner would have been a much better course of action than that downgrade. Its all good, better to know the bad news than to be left scratching! 10 years old huh? Oh well, it might be a nice introduction for me, as this will be my first go at tuning my own vehicle it may be good to have something without all the bells and whistles.
For now.Actually its the other way around Even though they are 'simple', they are quite hard to tune, especially as the manual/documentation is very lacking. There is plenty of settings on the MT pretty much have unknown effects because of this. The handcontroller is also difficult to use (the buttons 'bounce', and up goes down, etc), and the PC software isnt much better. There used to be a Microtech support forum which i got quite a lot of help/info from. It was closed mid last year.
Microtech LT10S Specs If you're looking for specs, than the question must be asked - what exactly are you looking for? The capability of a custom ECU is limited only by your motor and the tuner doing the work. But if you're searching for the full Microtech manual, than you can download that. Microtech LT10S Quick Start Guide (for the impatient) Parameters - Normal Mode, Fuel Only, PULP, Naturally Aspirated, MAP load Disclaimer: usual message, this is a guide only and the manual should be read in full etc, you really should know what you're doing, but hey, this is a great way to get your car running if you don't have a clue and need to get it to the tuning workshop. SET Throttle Position Sensor (TPS) This Step must be done BEFORE ENGINE IS STARTED Scroll to TPScal (Screen 30 on Handset) Set Idle Speed Screw With foot OFF Throttle, Adjust Up/Down until TPS reads 0 (zero) Yellow light will appear on ECU when TPS is calibrated correctly. Tune Idle Set idle speed and adjust Up/Down for smoothest idle Scroll to Idle (Screen 1 on Handset) Set Idle Speed Screw Adjust Up/Down to achieve best idle and emissions.
Black Smoke (Too Rich) Adjust Pulse Width Down Hunting (Too Lean) Adjust Pulse Width Up. Step 3 TUNE OFF IDLE Adjust this section with NO load on the engine. Adjust first 3 vacuum section for best Throttle response and target AFR is achieved. Scroll to Load (Screen 8 on Handset) TARGET AIR/FUEL RATIO 14.7-13.5 AFR 14.7:1 (Too Lean) Adjust Pulse Width Up With light throttle rev engine to 2000rpm and adjust 25, 20, 15 Hg Sections until engine clean revs and target AFR is achieved. TUNE LOAD MAP Should be done on a Dyno or open deserted road. Run engine under load or up a hill at 3000rpm and adjust 10, 5 & 0Hg sections until target AFR is achieved. TARGET AIR/FUEL RATIO 13.5-12.5 AFR 13.5:1 (Too Lean) Adjust Pulse Width Up Under load rev engine to 3000rpm and adjust 10, 5 & 0Hg until target AFR is achieved.
Once you are satisfied with the results from Step 1-4 it time to fine tune your engine. TUNE WOT This function is set under full load / wide open throttle. This task is best completed on a dyno. The mixture is corrected every 500rpm from 500-9000rpm. TARGET AIR/FUEL RATIO 12.0-12.5 AFR 12.5:1 (Too Lean) Adjust Pulse Width Up Scroll to RPMwot (Screen 17 on Handset) Adjust pulse width every 500 rpm until target AFR is achieved.
TUNE CRUISE This function is set under cruise / light load conditions. This will provide better Fuel Consumption during cruising and highway driving. The mixture is corrected every 500rpm from 500-9000rpm. TARGET AIR/FUEL RATIO 14.2-14.7 AFR 14.7:1 (Too Lean) Adjust Pulse Width Up Scroll to RPMcrs (Screen 18 on Handset) Adjust Pulse Width every 500 rpm until target AFR is achieved.
Tune Accelerator Pump This section improves throttle response and removes flat spots in the tune. # Note: Select suitable gear to provide longest test without bogging the engine down. Scroll to Pump1 (Screen 19 on Handset) Idle-2000rpm Apply Full throttle from near idle speed while rolling - # 2nd Gear Decrease the Pulse Width in small increments Repeat Testuntil you note a definite hesitation Increase Pulse Width to next highest value with NO hesitation Scroll to Pump2 (Screen 20 on Handset) Over 2000rpm Apply Full throttle from 2000rpm while rolling - # 3rd Gear Decrease the Pulse Width in small increments Repeat Test until you note a definite hesitation Increase Pulse Width to next highest value with NO hesitation.