car running like crap need help
#1
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Noob here. Got car 3 months ago ran great but the past 3 weeks keeps getting worse. The car was tuned by previous owner. Its a 2004 MSM with mods FM full exhaust, FM cold air intake, Coil on plugs (dont know name), intercooler (I think he said Fab9 not for sure), injectors (he said RX8 yellow injectors), MS3 Basic (MS Labs). Im new to this tuning cars and have searched the forums for the past 2 weeks trying to figure out what is going wrong. It has a mis and sputters i replaced the spark plugs (Denso IK22 gapped at .035) but didnt change anything. Truied hooking OBD reader to it but it said no link. Is that because of the MS3 or was it not wired up correctly? Hoping someone with experience could look at tune and log and let me know what you think.
Thank you
2017-09-02_20.32.43.msq
2017-09-02_20.38.41.msl
Thank you
2017-09-02_20.32.43.msq
2017-09-02_20.38.41.msl
#7
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Thanks Akina, The car ran great for 2.5 months then it sputter 1 time about 1-2 min, then I went a week before it done it again and now its getting worse. i have searched and found different anwers for the spark plug gap. The ones I took out where gapped at .035 i read that stock should be .028-.031 but I also read that if you have more boost you should have a little more gap. Is this true? when I gapped them at .03 and started the car it instantly had a miss so I gapped them to .035 like the ones I took out and it didnt miss instanly but started sputtering and missing about 10 min into the drive.
#8
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You are supposed to lower the gap the more boost you have, but it's not that simple, .035 is common.
What coils are you running?
You run 8 ms cranking dwell and -2 degrees cranking timing.
Overrun fuel cut needs tuning, as well as the low kpa rows in your VE Table.
If the car run fine without misfires, then the culprit is most likely not the tune(although it might)
Check your sensors, ignition coils,wiring, vaccum lines etc
What coils are you running?
You run 8 ms cranking dwell and -2 degrees cranking timing.
Overrun fuel cut needs tuning, as well as the low kpa rows in your VE Table.
If the car run fine without misfires, then the culprit is most likely not the tune(although it might)
Check your sensors, ignition coils,wiring, vaccum lines etc
#10
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Update: I put the stock coils back on and went on a 20 min drive and car ran great. so im guessing the coil packs are bad. They are denso 129700 4800 JO 480 coils. When I googled this it showed COP for Suzuki GSR 600. Are these better than stock coils or should I buy new ones or keep the stock coils on?
#14
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Just a heads up that I'm running the FAB9 COP kit on my car (Same as you i assume from the GSXR coils) and it used a VW ICM (Ignition control module). They are a known failure point on the VW / Audi cars they are on. I was having misfires on cyl. 3 and replaced the ICM to resolve the issue. My car was intermittently bad for a month or two before I replaced it, golden now.
Here's what I needed: NEW Ignition Control Module Fits Audi / VW 1.8L # 4D0 905 351 1.8T ICM ICU FSU | eBay
Here's what I needed: NEW Ignition Control Module Fits Audi / VW 1.8L # 4D0 905 351 1.8T ICM ICU FSU | eBay