Poor Acceleration

[JaredJHuffman]

Just got a '95 ATX at about 115k miles.
I read about the tune up so I had the timing belt done right after I got it. Now I am having trouble accelerating off the line. It feels like I am pulling a huge weight or dragging in some way once I hit 4000 rpms. As they go up from there, the speed barely changes. Any ideas as to what this could be?

Also the plug wires seems old...

 

[JaredJHuffman]

Update

Also, the acceleration problem only seems to occur in first gear.

Another possibly related problem:
If I floor it and run it to 7000 rpms, the engine seems to kick off or **** for a fraction of a second as it shifts into the next gear.

 

[Ishodu]

First thing I have to ask is, do you have oil in your plug wells? #2 Have you checked for any ECC codes? If not I would take a look. Check the link in my sig, it shows you how to do it yourself for free.

 

[masho95]

It sounds like the secondaries are stuck open. You should notice an increased acceleration at 4K RPM due to the secondaries opening not like you are dragging weight. Do a search on here for procedures on checking the secondaries.

 

[JaredJHuffman]

Engine Codes

I pulled the codes and this is what I got:

Key On Engine Off

335 (O) EGR feedback signal is/was out of range - EVR or PFE

111 System checks OK

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Key On Engine Running

326 (R,M) Pressure Feedback EGR shows low pressure EGR not seating or not seating intermittantly - PFE

225 (R) Knock sensor not tested (ignore if not pinging) - KS

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Cylinder Balance Test
9 No Problems

 

[Electricat]

The EGR codes shouldn't cause a problem like that.

It is possible that your new timing belt is "off" a tooth.