cylinder misfire.

[rizzler]

so its time to get my emissions done on the 97 altima and its thrown a code for a about a year and a half for a cylinder misfire, its usually passed emissions with flying colors even with that and now it wont. any idea of what it could be? recent fixes were knock sensor, distributor, dizzy cap, spark plugs any ideas would help.

thanks in adv.

[seanrg1116]

friend had same code and it was caused by a bad HG. But its fixed now and code never came back

[twinj]

Any Mods to the car?

[seanrg1116]

nothing other than a drop in k&n air filter

[twinj]

How many miles?

[seanrg1116]

96 civic ex (bone stock)

5speed
218xxx
well maintained
never modded

there are other things that can cause a misfire

[rizzler]

no mods. automatic, running almost 180k its 179XxX
been daily driven everyday normally. no excessive speeding (going over 75-80) on the highway, weekends i drive the xterra or the civic


seanrg whats the hg?

[EmminoDaGreat]

Check your EGR system, If its not working properly it can cause a misfire.

Also was the knock sensor you replaced with a new one?

[patrick4588]

have you reset the ecu?

[rizzler]

Check your EGR system, If its not working properly it can cause a misfire.

Also was the knock sensor you replaced with a new one?

yes it was.


have you reset the ecu?

i guess ill take it to the mech to do that... im not so car savvy.

[patrick4588]

just pull the ecu fuse out and take the battery terminals off for like 15 seconds

[seanrg1116]

head gasket

[twinj]

Are we talking about 2 different cars?

[Azn-Boost]

should have gotten checked out if check engine light was on.. if your mech. just did the work on the car, i would take it back and show them that u got a misfire code or just reset the obd and drive it for 100 miles and light does not come on then u are ready to pass