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Joined: May 2003
Posts: 5,621
Hard-core CEG'er
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OP
Hard-core CEG'er
Joined: May 2003
Posts: 5,621 |
OK, it all started a week ago, right after getting some gas - or so I hope thinking about the easiest explanation - while driving I can feel that even if I let my foot from the gas pedal - a teeny tiny bit - the car kinda chokes a bit, kinda even jerks a bit but very subtely - also, while idling - sitting in traffic or whatnot - I see that the RPMs are kinda flactuating - not a lot but some. Now the effect is more pronounced after I drive a while for like 20 minutes - when the car is ice cold it doesn't seem to be a problem.
Now, the idling drops are not the biggest problem - whehever I start driving from the streetlight or something - I have to press the gas pedal very very carefully - otherwise I feel the engine is gonna stall on me. When accelerating pretty steadily - I don't feel no problem.
... and finally whenever I park - the engine dies this very moment after a coupla seconds of struggling...
My thoughts:
1. bad gas (I wish)
2. since I got OTB - maybe it's the throttle positioning sensor
3. O2 sensor? Dunno - I have not CEL on.
Whatcha think fellas?
Tnx.
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Joined: May 2002
Posts: 21,653
I have no life
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I have no life
Joined: May 2002
Posts: 21,653 |
Very well could be bad gas. Do you have a chip? I found out after being chipped, my car doesn't like wal-mart gas. Have you ever replaced your pcv valve? You should get this alex pepper's scanner www.obd-2.com could help you diagnose a problem. Could be o2 sensor, but I doubt that very highly,, even if you end up replacing the sensor, something causes the sensor to go bad and is the true cause of your problems.
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15
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Joined: Apr 2002
Posts: 2,483
Hard-core CEG'er
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Hard-core CEG'er
Joined: Apr 2002
Posts: 2,483 |
Have you changed your fuel filter recently?
Maybe time to clean your MAF (or air filter if its really bad)?
Frank McCoy aka Mod-deth aka Mid Life Crisis aka SVT Doood aka mcgainer is a SCAM ARTIST
Pre98 Zetec - Some Mods
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Joined: Apr 2002
Posts: 36
New CEG\'er
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New CEG\'er
Joined: Apr 2002
Posts: 36 |
Before you buy any parts to fix it, take off the EGR and clean the crap out of it. You will need a crows foot wrench, I bought the wrong size so I had to mod it to fit. But just get the right size, its not very hard to get off. My car was at its extream, it wouldnt take off from the stop light without a ton of hesitation. I cleaned the EGR and the car runs perfect. Could be a number of things although. My car is acting up hardcore again, but whats new!
-------------------
'95 Contour ZETEC
Tinted Windows(35%)
door dings removed
16" Dubs!
2.25 pipe flowin to a magnaflow
(soon to get CTA intake)
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Joined: May 2003
Posts: 5,621
Hard-core CEG'er
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OP
Hard-core CEG'er
Joined: May 2003
Posts: 5,621 |
Well, yeah my ride got a chip, but I always get the highest octane number available.
Fuel filter - never changed it, but true - could be that.
EGR - yeah, I am gonna clean it.
Airfilter - nah, I don't think so, I guess I put only about 3K on my new one.
MAF - how one cleans the MAF? U mean - the outside of it + connections?
Tnx.
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Joined: May 2002
Posts: 21,653
I have no life
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I have no life
Joined: May 2002
Posts: 21,653 |
Remove air filter, spray non-residue electrical cleaner on the MAF wire. Let dry,, done.
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15
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