Car is Pissing me off! Help!
ok so i got a 2006 JDM Evo IX. i got it second hand doing 10000kms. so far i have changed fluids.
so i started logging with Evoscan and realised to my suprise i am getting 20-25 counts of knock. DAMN!! so with the help of a very knowledgable tuner in trinidad we started adjusting timing only (no WB).WB going in this weekend. we got the knock down to 10-13 knocks when in WOT 3rd gear pull. but from there i tried a couple maps and the knock wont come down!!! after seeking help ppl told me to do a boost leak test...Done! no boost leak. changed spark plugs....good...still getting the same knock... the only thing i can think is a bad knock sensor????? there is one more factor that is out of my knowledge, my car is a GSR but i have a GT ECU in the car (long story!) but running maps suited for the GSR....will this cause a problem? i can post my rom and log i did last night if u guys wanna see....i am completely lost. |
did you check the knock filters in the GT rom to see if it matched the GSRs rom? that could be the factor, cause the threshholds could be off, post your rom and i will take a look at it.
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What is your list of Mods? Try adding race gas or toluene to the tank of fuel and see if the knock reduces.
Are you 100% sure the ECU is GT or just the mapping? Because I have the JDM evo9 gsr also and the ROM ID is 88570008. You have PM. |
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did you check the knock filters in the GT rom to see if it matched the GSRs rom? that could be the factor, cause the thresh holds could be off, post your rom and i will take a look at it. What is your list of Mods? Try adding race gas or toluene to the tank of fuel and see if the knock reduces. Are you 100% sure the ECU is GT or just the mapping? Because I have the JDM evo9 gsr also and the ROM ID is 88570008. You have PM. Here is the log and .xml file. i need ur email to send ROM, its too big to post! paste the xml file here so u can open the rom in Ecuflash and PM me ur email C:\Program Files\OpenECU\EcuFlash\rommetadata\mitsubishi\evo Zip file: |
anyone?
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Looking at your log your timing is really bad. You have 8deg at 3800 which is too much, it then drops to -1 by 4000 and back up to 11 by 4250. No wonder you have knock.
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yeah john i was looking at that but i am no pro at this...can u assist? if u want i can email rom and xml file.
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Originally Posted by John F
(Post 5317091)
Looking at your log your timing is really bad. You have 8deg at 3800 which is too much, it then drops to -1 by 4000 and back up to 11 by 4250. No wonder you have knock.
Edit: If you send me your ROM, I can tweek it a bit to get it to stop knocking.... email is thomas dot klemann @ forceprotection dot net |
Originally Posted by rolly1818
(Post 5317120)
yeah john i was looking at that but i am no pro at this...can u assist? if u want i can email rom and xml file.
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check ur emails in 10 mins
it should be there..anyone else with feedback??? apparently my timing is all over the place, its not matching with what it is supposed to be in my rom....what can this mean??? u will see in the emails! |
coultema@cvn75.navy.mil send me your rom
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One thing I thought of also is the GSR and GT have different turbos also.
So you're using a ROM that's mapped for a different turbo than the one you have. edit: Nevermind I just noticed you said you're running maps suited for your car |
lol.... never knew the GSR and Gt had different turbos!!
oh well learning everyday |
the only difference in turbos is they had an option for the titanium shaft and fins were as the RS's came stock with them and the GSR doesn't have them at all i think. looking at you rom it seems the def. is all fu%cked up, but that may be my computer. i looked at you timing and its really low in your rom and your fuel map looks normal at spool and then really rich, but your not even hitting really high load according to your log. i would put a stock JDM RS map on there and then see how it runs. i will check your filter settings here later and go over your rom again when i get a chance and i will get back to you.
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The knock filters are correct
A JDM RS map runs more aggressive maps. The car logged 21 counts of knock on a GSR map, it will be even worse with the timing on an RS. It's a step in the wrong direction imo. The rom might look messed up if you have a different evo9base definition to read the 89980000 rom. |
The GT has the magnesium/titanium compressor wheel as standard. The GSR can be optioned to have the mag wheel as well. My GSR has the mag wheel, so the tune doesn't really differ with different compressor wheel material. Sadly, the 70 serial mag wheel turbo had a high failure rate (as I had to find out) and later it was upgraded to 71 serial.
The problem with the OP's map as I see is that the car is not following the timing map as has been specified in the ROM. This might be due to the definition not being correct, or it can also be that other unexplained things in the map which causes this situation. The MAF seems ok as the JDM Map (boost) is almost in line with the 2-byte load. Was this car (Map) modified in such a way to not follow 2-byte load for timing but some other load maybe? Also, in the current ROM, the Max Wastegate tables 2 is not the same as 5 and 7 as it should be in JDM twin solenoid setup cars to get the desired stock boost curve. I would suggest getting an ACTUAL STOCK GT map from some car (available in the UK easily..maybe MLR forums). |
I believe the crazy timing as shown in the log is causing the knock but the timing maps in the ROM are very safe. The ECU is not adjusting timing as per the maps so something unexpected is happening in the ECU. Can you reflash your ECU with the correct factory ROM? jcsbanks is the man to ask.
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You have 12 degrees timing when you're at 12 psi boost. That's a lot compared to me. I'm only 91 octane though. Your load seems to be right for that boost level.
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so call in the professionals lol
jscbanks? johnbradley? |
i didn't know that about the JDM turbos, thanks for the info, and i know that the turbo wouldn't have anything to do with whats happening. i agree with Chamama that you should get a dead on stock GT map and hell def. on top of that and see how it does.
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I disagree...a stock GT map would cause the car to knock even worse. Have you seen the timing in a GT map:
https://img81.imageshack.us/img81/62...0timingqp7.jpg More than likely something is off with the definition file or the evo9base file. The timing in the rom is very conservative, yet the ecu is advancing timing a lot more. When timing is made even more conservative the ecu still advances beyond that set in the maps, but doesn't advance as much as before. If someone is proficient at locating addresses in IDApro and the like maybe they should double check the address for the ignition tables and see if everything is in line. |
lol where am i gonna fine a stock Gt map lol..
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to add to that read what R. Mutt said something is off in the def. file IMO.
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Originally Posted by Chamama
(Post 5318968)
The GT has the magnesium/titanium compressor wheel as standard. The GSR can be optioned to have the mag wheel as well. My GSR has the mag wheel, so the tune doesn't really differ with different compressor wheel material. Sadly, the 70 serial mag wheel turbo had a high failure rate (as I had to find out) and later it was upgraded to 71 serial.
The problem with the OP's map as I see is that the car is not following the timing map as has been specified in the ROM. This might be due to the definition not being correct, or it can also be that other unexplained things in the map which causes this situation. The MAF seems ok as the JDM Map (boost) is almost in line with the 2-byte load. Was this car (Map) modified in such a way to not follow 2-byte load for timing but some other load maybe? Also, in the current ROM, the Max Wastegate tables 2 is not the same as 5 and 7 as it should be in JDM twin solenoid setup cars to get the desired stock boost curve. I would suggest getting an ACTUAL STOCK GT map from some car (available in the UK easily..maybe MLR forums). Code:
<table name="High Octane Ignition Map 1" address="30c1"> |
now i really confused!
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I would try flashing the GSR ROM that your car should have to your ECU.
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tried that but the car wouldn't start. Though it might be immobilizer related but the JDM cars don't come with an immobilizer. Still tried changing the immobilizer code to 0xFFFF to make sure but no luck. Basically car is stuck with the 89980000 map.
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I don't have a solution here but I am just offering a few thoughts.
Looks like the ECU is a mixed up combo of GSR and GT ROM now. I suppose your options are limited to: 1. Buying an original GSR ECU 2. Reformatting your GT ECU and reflashing it with the correct GSR ROM - Is it possible? 3. Buying a standalone ECU. Loosing MIVEC? |
yea... I was thinking that worse comes to worst. replace te GT ecu with a GSR unit.
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i have a GSR ECU on the way, but i dont know when i will get it! long story!
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its very strange that ecu is not pulling the timing.octane level seems to stay at 100% at all times,even tho there is high knock level
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that octane level is wrong it should be like 91 lol....
stupid gas we got here! and thats our major export! |
The logged octane value refers to how much the ecu is interpolating between high and low octane maps. Nothing to do with the fuels AKI. With sustained high levels of knock, the ecu will start to access the low octane maps, which should be more conservative (built in failsafe).
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The logged octane value refers to how much the ecu is interpolating between high and low octane maps. Nothing to do with the fuels AKI. With sustained high levels of knock, the ecu will start to access the low octane maps, which should be more conservative (built in failsafe). the low octane and high octane maps are the same so interpolating is out of the question... even if it needed to interpolate between the high octane maps and low octane maps it should show higher values than the low octane map, right? so how can the ECU decide on a timing higher than the high octane map???? lol |
Octane flag does not reference octane of gasoline in the tank. A logged 100 value means the ecu is reading excluisively off the high octane maps. Yes, since you have high and low maps equal, it doesn't matter what your logged octane flag is.
Hopefully the guys that are currently helping you can figure it out, looks like your car was a bit fubar'd when you got it. This is the right place for help. |
sorry i misread ur post i understand what ur saying.
yeah lets hope i can get ir fixed...i think my xml file (if thats what u call it) is incorrect and making the values i use to put into the maps through ECUflash wrong somehow?? i am not sure what to do cause my programming skills suck! |
I think it's important to always have a different low octane map in case you get a bad tank of gas. Again, strange it's not changing to the low octane map.
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Have you tried the race gas test to see if the knock goes away? Isn't japanese gasoline a completely different formula?
Have you checked for exhaust rattles or any other sounds that may be causing the knock sensor to give false readings? |
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