View Full Version : Uh oh, the car's doing something scary...


greg-ster
06-27-2006, 04:29 PM
I'm a wee bit wierded out by something my car started doing a few minutes ago.

I started it up and it's idling all over the place, making a rumble (room rooom) noise, and it kinda smells like gas.

And naturally, there's no MIL...oh boy, this will be fun at the dealership :bawling:

I uploaded a video (click here) (http://www.youtube.com/watch?v=Wi71nJGgDLI) (around 30 seconds, 11MB) for you guys, just in case you're interested in taking a crack ar what's wrong with teh car. Blow up the video to full screen to see the tach bounce around a bit easier... :thmsup:

I'm a little bit scared about this :(

BenjiBoy650
06-27-2006, 04:38 PM
You have it set as a private video

greg-ster
06-27-2006, 04:44 PM
You have it set as a private video
Now that's an always brilliant idea of mine...i think i fixed it

Conundrum
06-27-2006, 04:48 PM
I know my 6spd bounces around a bit on startup if its cold outside but not like that (maybe only 50-100rpms ever 10-20 secs or more)

Did you fill up at a different gas station recently? Have you pulled the battery for anything (and rest the ECU and idle learn)? If you low on gas maybe try some 91 and see if that fixes anything (still would need to be looked at but would give more clues where the issue is).

greg-ster
06-27-2006, 04:55 PM
It's at 1/2 tank right now...it shouldn't be gas related

I'll have to drop by the dealership in the morning, unannounced...I have to wonder if my car was assembled by VW :dunno:

RTexasF
06-27-2006, 05:12 PM
Tell us what you find out please.

jermy4
06-27-2006, 05:38 PM
It idles just like my Oldsmobile :yes:

saxdogg
06-27-2006, 07:23 PM
I'm voting for engine misfire (bad coil, plug, wire, etc.)...especially since you say you smell raw gas. I'll bet if you drive it, you'll get that MIL light you've been dreaming of!

JP

Conundrum
06-28-2006, 03:01 AM
It's at 1/2 tank right now...it shouldn't be gas related

I'll have to drop by the dealership in the morning, unannounced...I have to wonder if my car was assembled by VW :dunno:

Didn't really mean low gas...more like it might have been too low of octane (I know some independent places with cheap gas do "cut gas" on occasion). If you went through the other half tank then that shouldn't be the case (unless the car had sat unused for a very long time on condensation built up).

In that case my vote goes to either a forgetten idle learn or like saxdogg said...bad coil, plug, wire, etc.

greg-ster
06-28-2006, 05:18 AM
Oh boy did I get a MIL today...

I started the car this morning, then it stalled when I put it in drive...it then bounced at 3000 RPM when I tried to merge onto the highway, trying to go to the dealership (hella scary).

H of New Rochelle says "multiple trouble codes"...oh boy :(

I have to mention: I'm stunned by H of New Rochelle's service department - the service advisor was super nice, and they shuttled me back home (which is a good distance out of their area). They went from sucking to surprisingly good (so far).

It's amazing what can happen over a year of not going there...

jermy4
06-28-2006, 05:54 AM
I forgot to mention. My oldsmobile was doing this and a few days later the check engine light came on. I took it to autozone to get the code read and turns out the gas cap was loose. That car had half a tank too. I tightened the gas cap down tight and it's running smooth now.

Conundrum
06-28-2006, 06:47 AM
Oh boy did I get a MIL today...

I started the car this morning, then it stalled when I put it in drive...it then bounced at 3000 RPM when I tried to merge onto the highway, trying to go to the dealership (hella scary).

H of New Rochelle says "multiple trouble codes"...oh boy :(

I have to mention: I'm stunned by H of New Rochelle's service department - the service advisor was super nice, and they shuttled me back home (which is a good distance out of their area). They went from sucking to surprisingly good (so far).

It's amazing what can happen over a year of not going there...

Hope their able to fix it quickly and get it back in your hands...

ericrwalker
06-28-2006, 06:50 AM
Man Greg-ster I think you got the lemon of all Honda's at least you are getting better gas mileage these days.

princess
06-28-2006, 09:53 AM
Don't forget to share the list of codes!!!

BenjiBoy650
06-28-2006, 12:32 PM
(hella scary).
You're one of the first people that don't live in NorCal that I've seen use the word hella :lmao:

greg-ster
06-28-2006, 02:13 PM
It's 6pm (dealership closed) and I haven't heard back from them...hopefully it isn't too serious. After all, what else is there left for them to replace http://www.acurazine.com/forums/images/smilies/rofl.gif

I guess that i'll be carless till tomorrow, i'm assuming...

@Benji

I hang around a few people from massachusetts, I guess that's where it's coming from :)

@ princess

DA'll be the first to know :thmsup:

greg-ster
06-29-2006, 09:11 AM
Okie, so the dealership called about an hour ago and my car's ready! That was rather quick :)

The Service Advisor said that it needed a new map sensor (???)...I just have to figure out how to get to the dealership without a car. I think that a bus goes there...the 60

So what's a map sensor, what's it do, and how did it manage to mess up the car so badly? :dunno:

SSMV6
06-29-2006, 09:25 AM
A new MAP sensor, eh?

Definition(from a quick search in Google): Refers to a manifold absolute pressure sensor, a variable resistor used to monitor the difference in pressure between the intake manifold at outside atmosphere.

This information is used by the engine computer to monitor engine load (vacuum drops when the engine is under load or at wide open throttle). When the engine is under load, the computer may alter spark timing and the fuel mixture to improve performance and emissions.


So. In other words, your MAP sensor is giving your ECU an incorrect signal so it didn't know how much fuel to inject into the cylinders. Typically, in this case, the engine runs rich (more fuel, less air). This could be part of the original reason why your car was guzzling gas. :dunno:

Accord4Life
06-29-2006, 12:48 PM
That MAP sensor makes complete sense! Our 96' Accord has only has one CEL, and that was it. Before it got replaced the car would idle rough, shake, and sometimes stall out.

My sonsor lasted a good 80k though :D. Guess they don't make em' like they used too...

greg-ster
06-29-2006, 01:40 PM
I'm back from the dealership!:)

The DTC's aren't really defined, but I think that I found (the only) one on my invoice: 2071 W

The rest:
121102 Mass Airflow Sensor - Replace
2071 W
1 35852-SDA-A01 W-Bulb A
1 37980-RNA-A01 Meter, Air Flow

123505 Codes/Operating Data Access Flash Codes 2071 W

I wonder that were the other codes they saw...:dunno:

I'm glad that this happened now, when I have time to kill and the car is a garage queen, and not next week when I wouldn't have been able to deal with it for the rest of the summer.

You guys are great! Thanks for always being around for my constant 'issues' :thumbsup:

I should reset my trip computer and monitor my MPG after this...

BenjiBoy650
06-29-2006, 01:41 PM
Just ask the dealer shuttle to pick you up.

ItsaHonda
06-29-2006, 01:43 PM
Our 96' Accord has only has one CEL, and that was it. My sonsor lasted a good 80k though . Guess they don't make em' like they used too>>>>

The only sensor I had to replace on my 96 was a secondary O2 sensor (which was also the only time the CEL ever lit) MAP sensor is still original, unless it was replaced before I bought the car with 45k miles. Nearing 21,000 miles on the 06 and so far so good!

Greg, glad to hear you're back in business!

saxdogg
06-29-2006, 01:48 PM
Greg,

You mentioned MAP, but your invoice says MAF...those are two different components. The MAF is right after your air filter in the intake ducting. You don't happen to have a K&N or other oiled filter do you?

JEremy

greg-ster
06-29-2006, 01:54 PM
@saxdogg

I haven't modified anything in the engine compartment, basically for warranty purposes. I know that they can't deny warranty repairs solely because there's aftermarket stuff in the car, but given the number of warranty claims that i've had to make, i'd like to avoid any potential issues :)

The S/A said somehitng that sounded like "map" when she called; it's entirely possible (and probable) that she said "maf"... ehh close enuff :lmao:

saxdogg
06-29-2006, 02:28 PM
@saxdogg
I know that they can't deny warranty repairs solely because there's aftermarket stuff in the car,



That's partly true, they CAN void the warranty though if they can prove the modification caused the failure (for that one repair, not the whole car).

For example, over-oiling a filter can kill a MAF sensor and they probably wouldn't replace it. But that's why you swap out your K&N before you go! :paranoid:

jeremy

greg-ster
06-29-2006, 02:39 PM
^that's pretty good to know...I think that I'll avoid using a K&N for that very reason - especially out of warranty ;)