almost 32000 miles and my car is misfiring
#1
im back
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almost 32000 miles and my car is misfiring
What the fuck is that about....i can't figure out the fuckin problem, i changed the plugs, checked all my fuel lines, pumps, injectors...my friend hooked up his OBDII and i had 11 errors...9 misfires on 4 outta the 6 cylinders, 1 low voltage on my o2 sensor and 1 over rev(testing my shift light, supposed to go off at 69 and never did so i hit the limiter to see when)....anyone have any other ideas why my car would be misfiring???
#4
shooting for 1200+rwhp
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i ran into the same problem and my car actually shut off...they blamed it on a ground wire to my aftermarket speakers (BS) and said they had to rewire the line to the fuel pump....cost me $280 for the labor b/c warranty voided due to the aftermarket speakers...i honestly hate my Acura dealership, but its the only one in town....they will due anything not to cover something under warranty.....i love my CL, but after the shitty service ive received, i think this will be my last Acura....
#5
aka davo-tsx
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Originally posted by Zootking
....cost me $280 for the labor b/c warranty voided due to the aftermarket speakers...
....cost me $280 for the labor b/c warranty voided due to the aftermarket speakers...
![Mad](https://acurazine.com/forums/images/smilies/mad.gif)
#6
Racer
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Make sure you check the pins within the coil packs. 2 Months after I bought the car it began misfireing (undriveable). Had it towed and when they checked they found everything looked right however on closer inspection cyl 2 and 6 had bent pins inside the connection. (within the coil packs)
The week before they blamed it on the spark plugs and changed all of em. Goes to show... I needed to get stranded before they made an effort to see what was really wrong.!!!!
TLS RULZ
The week before they blamed it on the spark plugs and changed all of em. Goes to show... I needed to get stranded before they made an effort to see what was really wrong.!!!!
TLS RULZ
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#8
9th Gear
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have the dealer check the egr for valve lift malfunction!!!! also make sure any electrical items installed are not grounded with factory grounds especially ground in trunk for fuel pump!! and if powered into fuse box is has not spread the connecters for the fuse.
#9
Senior Moderator
Originally posted by Nashua_Night_Hawk
Let the dealer worry about it!
Let the dealer worry about it!
![Stupid](https://acurazine.com/forums/images/smilies/imwithstupid.gif)
why are you even trying to fix it?
#13
Senior Moderator
take all your shit out of teh car.
#14
Sweet as Gold
ADJUST YOUR VALVES...WE SEE THIS ALL THE TIME...THE EXHAUST VALVES ARE TOO TIGHT AND CAUSE MISFIRES.....DO BOTHE INTAKE AND EXHAUST VALVES ON BOTH HEADS ANS YOU SHOULD BE FINE!!!......lemme know how it goes..
#16
Suzuka Master
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Since you are under warranty you might as well have them look ta it.
If that doesn't work out here are the things to do:
1) Verify the quality of gasoline used. Run the tank empty and try a different brand. Also run some Techron through the fuel system
2) That low O2 voltage code may be key. Without the O2 sensor working properly the ECU cannot adjust correctly to changes in conditions which could lead to misfire if the injectors get clogged or the fuel pressure drops some, etc. This leads to the next step.
3) Check the fuel pressure with and without vacuum attached.
4) Change the plugs again and test the ignition coils.
5) Do a compression test.
If that doesn't work out here are the things to do:
1) Verify the quality of gasoline used. Run the tank empty and try a different brand. Also run some Techron through the fuel system
2) That low O2 voltage code may be key. Without the O2 sensor working properly the ECU cannot adjust correctly to changes in conditions which could lead to misfire if the injectors get clogged or the fuel pressure drops some, etc. This leads to the next step.
3) Check the fuel pressure with and without vacuum attached.
4) Change the plugs again and test the ignition coils.
5) Do a compression test.
#20
mister D
Join Date: Oct 2001
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i got the misfiring code after 6500rpm, my car was leaking oil from the back of the block, im not sure how they fixed it. but yeah. anyone else had oil leaks b4?
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