mis firing cyl 1,3 and 4
Started throwing codes (mis firing cyl 1, 3, and 4) Replaced teh plugs with NGK BRK7E gapped at .30. Started the car up and it was fine. Took it out for a ride did a couple of pulls, Parked the car and let it idle down and the codes came back. Checked the plugs and they were really white. So i tested the coil and it checked oout ok, The cap, rotor and wires are all new. Should i move on to the fuel system next. I'm running Rc310 injectors with a bull ---- blue box. Let me know what you think.
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Re: mis firing cyl 1,3 and 4
white = lean most times.
what exactly is your setup? how much boost? |
Re: mis firing cyl 1,3 and 4
B18b1
Greddy 18G turbo kit w/ FMIC - 8 psi Rc 310 injectors,Blue box Type s Bov, Apexi world sport catback Brk7e gapped at .30 , Stock timing |
Re: mis firing cyl 1,3 and 4
what does that blue box do with timing? anything? maybe kick it back a couple degrees, you hearing any detonation at all?
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Re: mis firing cyl 1,3 and 4
blue box oonly controls MAP, and fuel. I'll play with the timing .
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Re: mis firing cyl 1,3 and 4
maybe those injectors are the problem
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Re: mis firing cyl 1,3 and 4
Originally Posted by Smooth_Imports
blue box oonly controls MAP, and fuel. I'll play with the timing .
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Re: mis firing cyl 1,3 and 4
You're not getting enough fuel. Sell that ---- to somebody on H-T.
Get some 450's and Uber. |
Re: mis firing cyl 1,3 and 4
I don't know how the blue box works, but if it changes the signal from the map then that directly affects your timing.
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Re: mis firing cyl 1,3 and 4
Originally Posted by FooK
Originally Posted by Smooth_Imports
blue box oonly controls MAP, and fuel. I'll play with the timing .
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Re: mis firing cyl 1,3 and 4
uberdata it.
youre obd1 right? |
Re: mis firing cyl 1,3 and 4
nope still runngin OBD2 because they jump the ECU at inspection in jersey.
Anyway i just started working on it again at the miss is only happening at idle. and it's running lean at idle also. When it's moving it doesn't miss. |
Re: mis firing cyl 1,3 and 4
This definitely sounds like some fucked up pistons. Compression test it, I'm putting $5.00 on owned ringlands. Let us know
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Re: mis firing cyl 1,3 and 4
The miss is probably the imbalance in compression between cylinders. I'm upping to $20.00 paypal
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Re: mis firing cyl 1,3 and 4
Well i took the day off of work so i could figrue out what was going on with my car. Well i did a compression test and heres the results.
Cyl 1. 190 cyl 2. 70 Cyl 3. 180 Cyl 4. 195 So this means my rings are shot right? So now it's time to buy new pistons and rings right? Let me know what brand / model i should go with. I should buy rods while i'm at it. I'm only looking for a daily 250 whp |
Re: mis firing cyl 1,3 and 4
Yup thats a fucked up ringland. Damn I'm good 8) You can just replace the one fucked up piston or you can go and get some baller forged pistons
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