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Old 06-03-2011, 06:57 AM   #1 (permalink)
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nafeasonto
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Guys at this point I do not know what is going on.

This is the following what has done to my car:

I did all this work, except when I indicate.

1. Spark plugs changed.
2. Wires changed
3. I changed my fuel filter
4. Cold air intake, on the intake with perfectly clean filter
5. Alternator is less the a year old
6. Battery is older, but not super old.
7. Water pump replaced and timing belt
8. Valve stems replaced (not by me)
9. Head gasket redone (not by me)
10. Compression test was ran and came out fine (not by me)

I have a humango loss of power when accelerating, and it's random. Sometimes I can accelerate nicely, other time I feel like the car just doesn't want to move. Especially on a roll, I just move like a snail.

Sometimes it's on a dead stop and it's completely random, other times it's constant. It makes no sense.

Also lately, out of NO where my car will start bucking for a few seconds, at the same time the check engine light (it's on due to a bad VSS for ABS ((but I don't have ABS)) will go off, my dash lights will go off, and the trans rpm will go down all the way. The car feels like it just will shut off, but it stops after a few seconds and the car regains power and the lights turn back on. I have NEVER seen this happen before. The transmission has never slipped and I have felt a bad tranny before, this is not it. THis seems like a power loss or short of some kinds. It's like half of the dash will go off. Pressing on the gas does NOTHING. It doesn't respond until it gets over it's "cough".

If my AC on forget about it. You see everyone at the traffic light passing me, and this is with almost me flooring the car. It's like my car goes down to 40hp. So I don't know what is going on.

The only thing electrical that I can personally think of that i have no replaced yet is the COIL PACK. HOWEVER I mentioned the Check Engine light before, I checked the codes everyday. NO NEW codes. Even after reset of the ECU (Disconnecting the batter) the light will come on for the same code.

So wtf is going on, anyone know why the car is suffering a great deal loss of power?
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Old 06-03-2011, 09:22 AM   #2 (permalink)
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OTTOMH, possibly shorted crankshaft position sensor or clogged catalytic converter.
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Old 06-03-2011, 09:48 AM   #3 (permalink)
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what does OTTOMH mean?
lol

The CAT on the exhaust line as replaced. If it's the front CAT then i am REALLY screwed. That is REALLY expensive, I can do it myself with a few cuss words, it's getting the part is the issue.

But i am going to start the cheap way and replace the Crankshift sensor first. I'll keep you updated. Thanks!
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Old 06-03-2011, 10:37 AM   #4 (permalink)
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OTTOMH = Off the top of my head
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Old 06-04-2011, 09:46 AM   #5 (permalink)
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I replace the sensor. There is no random jerking anymore thanks for that.

However, what I have noticed is this if it's HOT out. And once the car gets hot to it's normal operating Temp. The acceleration sucks. When it's cool, the acceleration is great. What would be causing this at this point if so much has been replaced and fixed. Would the car acclerate like crap at hotter weather because of the front CAT, I don't see how that makes sense?
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