missfire?

Mllamas10

New Member
What's up guys! To start I have a 98 gsr. The problem is when the car idles I has a very low sputtering sound! And when I'm goin in gear and let off the gas...it backfired and sputters when it passes 3k! it has no codes
What could it be?
 

Mllamas10

New Member
I changed out the plugs and wires and cleaned off the carbon on the cap. Would it be better to replace cap?
 

99tegjawn

New Member
Other (more intense) possible culprits.
Dirty IAC valve
Fuel filter/rail (unlikely)
Supercharger boost valve (most common)



Sent from my iPhone using Tapatalk
 

Mllamas10

New Member
I cleaned the iacv! It helped for bout a day lol and fuel filter is fairly new...ill look into valve adjust
 

Samurai_Blue

Yolo Whippin'
mteg said:
People overlook this way too much. Not sure what the factory recommends, but I'm sure there are Integras out there that have well over 100k miles that have never had this done.
Click to expand...
i learned the hard way -___- after tons and tons of research i found this answer...after a week of a flashing cel.


anyways i think its the .07mm .08mm intake .06 .07mm exhaust i may have gotten that backwards
 

klutchDb7

ლ(ಠ益ಠლ)
.04-.06 intake .06-.08 exhaust I believe

Can old wires cause a misfire? I have been getting a CEL saying I've had a misfire in cylinder 3 for several months now multiple times. Cap, rotor (coil in my case), plugs, valves are all good.... 93k miles
 

Samurai_Blue

Yolo Whippin'
Clearence isn't that small. And yes a bad wire can cause it. There is a different way to diagnose 1 misfire vs all 4
 

klutchDb7

ლ(ಠ益ಠლ)
Such as?

I googled

B18B1 engine:
Intake?0.003-0.005 in. (0.08-0.12mm), Exhaust?0.006-0.008 in. (0.16-0.20mm)

B18C1 and B18C5 Variable Valve Timing and Electronic Lift Control (VTEC) engine:

Intake?0.006-0.007 in. (0.15-0.19mm), Exhaust?0.007-0.008 in. (0.17-0.20mm)
 
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