- #364 of 553
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Re: continue 2 misfire [mshuman]
by Mr_Shiftright HOST
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Mar 11, 2008 (4:12 pm)
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Replying to: mshuman (Mar 10, 2008 10:41 am)
Sounds like your mechanic is just throwing money at a problem he doesn't have a handle on. Why spark plugs? Why an 02 sensor without diagnostics?
I think a vacuum leak or the MAF sensor is where to look.
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- #365 of 553
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Re: continue 2 misfire [mshuman]
by refugeescamp
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Mar 12, 2008 (6:36 am)
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Replying to: mshuman (Mar 10, 2008 10:41 am)
its the MAF sensor, cleaning it will only run it for like a day or 2 and u notice a huge difference like its running like normal. You do need to replace it though, its about 350$ at infiniti. MAF will tell how much air to shove into your car and if that's busted you will notice less performance when you speed up and you might even feel your car choke or rev up and down slightly.
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- #366 of 553
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Re: continue 2 misfire [mshuman]
by rvenkat
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Mar 15, 2008 (11:12 am)
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Replying to: mshuman (Mar 10, 2008 10:41 am)
Check message 315 on how to get a brand new MAF for $120. Worked for me and it drives like new even with a little over 100K miles on it (01 I30). refugee was right.
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- #367 of 553
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Re: Here's one for the experts here [rvenkat]
by nybum
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Mar 17, 2008 (8:14 pm)
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Replying to: rvenkat (May 29, 2007 6:52 am)
Hello I was researching this noise I was having with my I35 and I noticed that you have had the same problem last year... can you please tell me how you solved that issue the rattling noise that comes that you hear when accelerating..... its very annoying and I dont know what to do make it go away... I dont have any service engine soon light on although it was on afew months ago and it went away and when I checked it they said it was the 02 sensor..... any light you might shed on this matter for me would be appreciated....
Thanks
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- #368 of 553
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Re: Here's one for the experts here [nybum]
by rvenkat
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Mar 22, 2008 (7:13 am)
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Replying to: nybum (Mar 17, 2008 8:14 pm)
It was the MAF sensor. It got rid of the annoying, rattling noise and more importantly, the hesitation of the engine, when pressing on the gas sometimes. I didn't have a check engine light for the MAF sensor either. But after I replaced it, it is driving like new. You can get it done real cheap if you buy online (see my previous message) and have a mechanic install it - it should cost only about $50 (45 min) to install. O2 sensors are also cheap to replace if you get them online like eBay. Change them in pairs for each bank. You might not get the labor warranty if you get your own parts but in my opinion, the 50-70% savings is worth the small risk. These are just sensors after all and not a major mechanical component of the car.
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- #369 of 553
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jhayes9835
by jhayes9835
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Mar 22, 2008 (7:58 am)
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I have a 1996 infinity I30. When I accelerate the engine feels like it hesitates and I hear a bit of a backfire. At idle, it feels rough. Once I get up to speed, it runs great. I have a 116,000 on it. Can anyone steer me in the right direction as far as what I need to start looking at? The check engine is not on. Any help would be greatly appreciated. My mechanic wants to go by the process of elimination and that sounds very expensive.
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- #370 of 553
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sluggish performance
by jhayes9835
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Mar 23, 2008 (7:17 am)
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This is what has been done so far. My mechanic changed the plugs, flushed the fuel system and changed the fuel filter. That was a cost of 300.00 and I told him to stop there.
I still have the problem. If you ease into the accelerator, the engine is fine. It is only when you punch it or try to take off quickly when the problem starts. Also, I can feel it hesitating a little when I am going up a bridge (under a slight load). Hopefully this better explains the problem. Your help is greatly appreciated.
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- #371 of 553
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Re: sluggish performance [jhayes9835]
by refugeescamp
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Mar 24, 2008 (7:43 am)
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Replying to: jhayes9835 (Mar 23, 2008 7:17 am)
get a MAF sensor
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- #372 of 553
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Re: sluggish performance [refugeescamp]
by jhayes9835
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Mar 30, 2008 (4:10 am)
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Replying to: refugeescamp (Mar 24, 2008 7:43 am)
I had all six coils replaced, ran good for awile, started running sluggish again. Changed the maf sensor, no improvement. Injectors check out, I had an AIS flush.I am at a loss. What else could be wrong?
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- #373 of 553
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Re: sluggish performance [jhayes9835]
by refugeescamp
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Mar 30, 2008 (2:33 pm)
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Replying to: jhayes9835 (Mar 30, 2008 4:10 am)
have you changed your air filter? check to see if its super dirty, its right above the battery you'll see 2 small clips holding it in place, just pull it back and up. do you have any cracks in your muffler? when you turn your car on and walk behind it do you smell a lot of gas (more than usual)?
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