got a deal (sorta) on a 1999 es300. It bogs hard under acceleration and lacks the power. been researching and replacing parts as I go here's what's been replaced
1.knock sensor
2.maf sensor
3.pcv valve
4. air filter&fuel filter
5. gas
6. spark plugs
7. bad coil pack
8.front 02 sensor
swapped relays ,cleaned intake, tb,&iac. ran seafoam and techron through pulled fuel pump and cleaned that filter. idle is high even after being warm , i slam the gas and go from 1200rpm to 2k but no higher, until i let off a bit . here is video of what she's doing any insight will be greatly appreciated

@17s I floor it
@31s I completely release accelerator
@37s I floor it again
@41s i release accelerator
@49s i very slowly press accelerator
@56s I release
@1m I slowly press acclerator

http://s21.beta.photobucket.com/user/stopdrpnro/media/20121109_122156.mp4.html

11/9/2012 12:41:05 PM

you got a deal all right...

11/9/2012 12:51:12 PM

If only there was a thread for gayrage videos.....

Quote :

" LOCK SUSPEND TERMINATE"

11/9/2012 1:04:23 PM

^so long as the video has a purpose in the specific thread, it is allowed.

All hail our gayrage overlords

11/9/2012 1:57:22 PM

add tps to the list of things replaced

11/9/2012 3:50:34 PM

How are you not getting a CEL with it running like that?

I'm guessing more ignition coil problems, but that's just a guess.

[Edited on November 9, 2012 at 4:08 PM. Reason : l]

11/9/2012 4:05:04 PM

what did you gap your spark plugs to?

Quote :

"helluva deal"

[Edited on November 9, 2012 at 7:34 PM. Reason : ]

11/9/2012 7:34:44 PM

your windshield washer fluid is low. fill it and light will go off. lol

i watched the video before reading the list of items replaced. about 20 sec. in i immediately said "mass air flow meter". then i read the list and saw you replaced it. where did you get the new maf meter? i'm still suspecting that's the problem as your car is exhibiting classic symptoms of a bad one.

Quote :

"If only there was a thread for gayrage videos....."

even so my fellow brother can do what the fuck he wants.

seriously, though....this is correct:

Quote :

"^so long as the video has a purpose in the specific thread, it is allowed."

[Edited on November 9, 2012 at 8:17 PM. Reason : -]

11/9/2012 8:11:49 PM

Vac leak

11/9/2012 8:44:50 PM

^good one

my first guess was also MAFS but I didn't think you could rev up past 2k with a bad MAFS no matter how slowly you press the gas

11/9/2012 8:54:50 PM

^yeah, i know you can because i did it when i had an rx-7. i'm still pointing to the maf meter.

11/9/2012 8:56:49 PM

Yeah I agree that there is an air leak somewhere in the system. If you have any kind of way to read data over OBD (Android app or something), check your fuel trims. They may be pretty high depending on the nature of the leak.

Quote :

"How are you not getting a CEL with it running like that?"

Misfire monitors are, with rare exceptions, calculated based on the amount of time between crank angle sensor signal pulses. You have a monitoring window and you increment a misfire counter when something's out of range. The counter will increment but it can also reset. Image I found via Google:



A vacuum leak isn't necessarily going to cause all that to happen.

11/10/2012 12:07:52 AM

the maf was replaced with 2 different salvage yard units both were cleaned and neither made it run differently . vac leak is what i'm thinking too esp based on the sucking noise it makes at WOT can't seem to pinpoint any lose cracked or damaged hoses though.

11/10/2012 1:50:39 AM

Try the "cigar trick" or take it somewhere that has one of the fancy smoke machines?

11/10/2012 1:59:19 AM

Quote :

"the maf was replaced with 2 different salvage yard units both were cleaned and neither made it run differently ."

go buy a new one.

[Edited on November 11, 2012 at 7:04 PM. Reason : -]

11/11/2012 7:03:46 PM

when i unplug the maf the car turns off. plus what are odds of having 3 bad mafs? Gonna check the ect sensor Could it be ny other sensor

11/12/2012 8:48:58 PM

Did you clear the codes on the ecu after doing all of this work?

11/13/2012 1:47:26 PM

If the fuel pump is easy to pull, pull it and replace the sock on it.

11/13/2012 1:48:14 PM

yea cleared the codes after each replacement part. i pulled the fuel pump a few days ago and sprayed down the filter with carb cleaner and a tooth brush. can you tell visually if the sock is clogged?

11/13/2012 10:19:03 PM

My money would be on a vac leak based on everything you've replaced but mainly the sucking sound. Check all the parts you possibly can not just for cracks but for completely disconnected hoses and . Some cars are finicky without good vacuum; check dipstick, valve cover gasket, brake booster line, any actuators or valves that may operate off of a vacuum line such as EGR or fuel regulator. You don't have any codes at all? And just to satisfy my curiosity your coolant level is ok right?

11/14/2012 9:52:34 AM

You took the time to pull the fuel pump but didnt replace the 7-13 dollar sock. Great job duder.

11/14/2012 3:54:44 PM

computer

11/14/2012 5:21:02 PM

clogged cat

11/14/2012 5:21:24 PM

did you get this thing figured out yet?

12/2/2012 8:07:53 PM