CE Lancer ECU tuning

The cm5a has so its ecu rom.
Some overseas market 4g9x have knock sensor to their respective rom is setup for it.
 
Just started a ce coupe track car project; it's a 4g15 and until an engine swap is on the table we plan to boost it (~12psi).
I'm still so confused on what the best/cheapest options are for ECU management. Since I don't really understand this stock ECU with the Cm5a map stuff would it be worth going with a MegaSquirt (standalone or piggyback) ECU instead? Does that cheap DIY style ECU work with the 1.5? Is there anything to be aware of with the 1.5 like functions that can't be used etc.?
 
Just started a ce coupe track car project; it's a 4g15 and until an engine swap is on the table we plan to boost it (~12psi).
I'm still so confused on what the best/cheapest options are for ECU management. Since I don't really understand this stock ECU with the Cm5a map stuff would it be worth going with a MegaSquirt (standalone or piggyback) ECU instead? Does that cheap DIY style ECU work with the 1.5? Is there anything to be aware of with the 1.5 like functions that can't be used etc.?
I have done megasquirt. Road tune and dyno tuning as well. ECU was built by me and sucessfully setup on standard trigger wheels to run full sequential fuel and spark.
It is not for the faint hearted and in depth understanding of how trigger sensors work and to get reliable full sync.
4G15 runs map sensor. It will be ideal for you to invest in some sort of standalone ECU to boost.

Cheap will give you major headaches and poor man will pay twice.

I can do an ECU to plug in play and can start first go.
If you want an ECU that is flexible enough to easily run on the vehicle after you do an engine swap I have some options for you.
PM ME.
 
ce 4g93 and 4g15 do not have knock sensors. i have reflashed with ceddymods evo5/6 and am getting cel due to no knock sensor. knock is monitored and apparently sets 7-9 counts by default when signal is not received, signal broken, dead sensor etc. this forces into low octane map. for this i have installed a knock sensor with sheilded wire to pin 78 on the ecu, which is knock sensor on evo 4/5/6 ecu.

the ceddymods map on stock 4g93 ecu is going well, appears to work as it should. knock is reading however doesn't seem to be very sensitive in picking up knock in low rpm/idle. but works during normal running :) there are adjustment tables and they make a change to the behavior, so would just need tweaking i guess.

the main issue im focusing on knock sensors is i want to have it well prepared for hard driving even in the low octane map on 91! however. ecu map say timing for rpm/load is 5 and getting 15 degrees at idle. so stab throttle ping ping. pre ignition. been playing with it a fair bit but im actually having to back things off a fair bit from factory settings to achieve this. so blaming the comp ratio and the *poo*ty 91 and other things, i confirmed the stock ecu does as set in the map at idle unlike the evo ceddymap.
i have successfully eliminated all other knock readings throughout the rev range and have stable afr at wot and pretty standard around the cruise areas. just idle being a pain, it does it slightly with stock ecu but no where near as bad, in evoscan check the ig 5deg BTDC box and then it acts similar to stock ecu at idle/stab revs, but gutless near 2k upwards. so timing is the issue, and *poo* fuel.. haha the question is how to lower it below 15..... if its possible

have not really gone to deep into power tuning yet as im trying to replicate the stock running and improve where needed as a useable base map for these cars first.
every item needs to be calibrated to the engine if its going to perform well so with *poo*e fuel and low timing we have a safe starting point. the goal here is using knock sensor switching, between high and low octane maps, 98 and 91.

summary:
knock sensor working but needs dialing in
evo map has odd high ign timing at idle despite map settings being same as stock
power tuning not gone too far yet, but afr is high 12 low 13 under wot.
another thing to note, i have rigged up a serial cable output from wideband to usb to pc and logging it in evoscan. works fantastically :)
 
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anyone know where to find a CM5a 4g93t ecu map?

im having issues getting the knock sensor to detect real knock, i think its listening out for the wrong frequency. evo has different bore size so probably doesn't sync up.
going to try bring over the knock sensor setup from a 4g93t and see if that works better. if i can get my hands on the rom image and definition file
 
anyone know where to find a CM5a 4g93t ecu map?

im having issues getting the knock sensor to detect real knock, i think its listening out for the wrong frequency. evo has different bore size so probably doesn't sync up.
going to try bring over the knock sensor setup from a 4g93t and see if that works better. if i can get my hands on the rom image and definition file

If you find the map and def, let me know, i've been looking for months since before this thread was started for one
 
anyone know where to find a CM5a 4g93t ecu map?

im having issues getting the knock sensor to detect real knock, i think its listening out for the wrong frequency. evo has different bore size so probably doesn't sync up.
going to try bring over the knock sensor setup from a 4g93t and see if that works better. if i can get my hands on the rom image and definition file

Are you using the sensor from a 93 or 63?
Check the type of knock sensor it is, wideband(flat response) or resonant.
I think i had one from a 4g93T, which was a resonant type.
So the sensor itself would band pass the knock frequency, the ecu would then just need to check the "sound level".
If the 63 sensor is also a resonant type it may be set to a different frequency, hence your issue...

Not sure on any of this just random thoughts.
 
the sensor im using is a 4g63 one from evo 7/8/9. local suppliers list one for the 4g94 as a different part number, about $110 more expensive. same one that is used for the 4g69.

evos older than this there is no listings for knock sensors
 
I managed to get ceddymods running on the 4g93 Mirage over the weekend. Was pig rich, and had some issues with leaning it out, as it is now i set all open loop details to 0 so its all "disabled", turned off leanspool and a couple other things, and it seems okay. seems okay at idle but rich under WOT. It also doesnt like WOT when low RPM, i think this is to do with the launch control rubbish - once the car is moving/above about 3k rpm its okay.
 
what settings have you changed? its all wrong as its for evo/eclipse 4g63, runs surprisingly well considering haha. but you need to dial everything in to 4g93 spec, iv been experiencing similar issues, but have finally worked out most of the kinks after looting all the correct values from around the place and abit of trial and error.

is this running with turbo or nah?
 
Still non turbo. I had to change all the injector settings anyway, as i have different injectors installed. I tried copying over my MAF settings, but i think i may have missed something. Injector latencies are a bit iffy i think as well.
 
i have changed the following to get it running semi normal, i think i actually have it perfect as stock now

maf size, scaling table, scaling adder *not smoothing table*
injector size and deadtime/latency
high and low octane fuel and ign maps
coil dwell charge time

problems im getting currently is a nice cold start up, isc settings are just guesswork so far
and permanent ecu set 15 degrees ign timing. it overrides the value in the map and always idles and runs at 15 degrees. causing ping on 91.. aside from this its all good haha
knock sensor going off for wrong noise, needs tweaking also.

yes incorrect injector timing will do that, as with coil dwell time
 
Ill have to check again, I know I changed the smoothing table. Where did you find the figures, or from the stock map? Same with coil dwell time? I initially thought they'd be the same, but in retrospect evo could have had a different figure
 
smoothing table i found leaving as it is in ceddy evo5/6 appears to run fine, as soon as i tried changing it it threw everything off.

iv been trying all kinds of *poo*, starting to loose track now, il download my current flash and go through it and note exactly what i have changed
 
I don't suppose anyone is around SE Melbourne and willing to help with a 4G93 which seems to be running very rich, possibly due to the supercharger bolted onto it. I have exhausted my limited knowledge by checking the normal things and am just bashing my head against a wall now so would be grateful for any help.
 
I don't suppose anyone is around SE Melbourne and willing to help with a 4G93 which seems to be running very rich, possibly due to the supercharger bolted onto it. I have exhausted my limited knowledge by checking the normal things and am just bashing my head against a wall now so would be grateful for any help.
What supporting mods where done for the SC?
 
if the supercharger is after the maf it will be reading crazy airflow values probably maxing out the sensor and going full rich. as it cannot determine exactly how much air is going it, but it knows its alot.

from my perspective i think you have a few options. upgrade maf and recalibrate ecu for the new maf. this will give you more headroom but could be a pain to get it dialed in perfectly. some trial and error would be involved unless info for pasting in the values for that maf sensor is available online, depends what maf you want to use..

or convert it to speed density.
i have a GM 3bar Manifold Absolute Pressure sensor and GM Intake Air Temperature sensor in the mail. will set this up in my modified ceddymods map soon and try and get the car running maf less. this way you can tune based on manifold pressure and get rid of the maf completely meaning unlimited headroom based on the sensor you choose.

unless you are going to take it to a workshop/tuner to do you going to need some basic wiring skills, tactrix cable, ecuflash and evoscan programs.

once i have confirmed all this and it is rock solid proven i will create a thread that summarises all the findings neatly, i need to do more testing and learning before that though.


My current status is a nicely running stock setup 4g93 using stock ecu reflashed with evo5/6 ceddymod rom.
small issues im having:
-idle seems to be out of sync with what the map is set to, could be many things causing it but im sure i can sort it with a few extra tables added to my definition maybe even the idle valve needs cleaning/adjusting. haven't checked yet but it fires up and idles correctly with the stock rom...
issue is starting you have to crank for longer than normal and quiet often dies straight away, turn key quickly again and it fires straight away. idles few hundred rpm lower than its set to in the map. stock rom flashed back on,sits dead on where its supposed to and fires up much quicker

-Knock Sensor is a pain to get working correctly, it seems to come on for no reason. the engine isn't audibly knocking and runs nice but still detects small amounts of knock. maybe it needs more playing around with, maybe the sensor does not suit the engine, its an aftermarket replacement part for evo 8 currently installed. keen to try with another sensor maybe 4g93t or evo 5-6 4g63t sensor and maybe il have better luck.

-No Lift To Shift feature not working
wired up clutch switch to ECU Pin 91 and the other pin to ground, tested working but ecu does not detect the switch and therefore will not activate the shifting rev limiter. reverse the switch settings and it always limiter at correct time. maybe ecu doesn't have the hardware, maybe wrong type of switch.. will do more investigation.
 
and permanent ecu set 15 degrees ign timing. it overrides the value in the map and always idles and runs at 15 degrees. causing ping on 91..

I just read this again, apparently this is the lockout option, its within ceddymods to turn off i think
 
yep took me a while to realise it was 15 not -15 lol. rookie error, fixed that awhile ago and runs on 91 as normal now haha.

decided to test the "disable closed loop" feature on way home from work and it started to hunt slightly dropping to around 550rpm when it should still be around 1000 due to coolant temp correction.. still haven't physically checked the iacv but im fairly sure its not that... but things were feeling pretty good and wideband was more stable and was looking good, examining logs next step! got a feeling injectors arent dialed in 100% but we will see
 
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