riodealz28

on my 96' a4 lt1 i step on the gas from like 25mph and it starts to hesitate to go like if somthing is holding the car and then it lets go and the car starts to go faster any idea what could be wrong ?

Speed Density

iTrader: (38)

Thats happen to me before, then a few hours later it was gon..

brandboZ28

iTrader: (2)

When was the last time your fuel filter was changed?

Coders11

iTrader: (1)

I felt that awhile back right before my trans went out. I always just assumed it was a tranny problem because I haven't seen it since I put the new one in.

Bawls

Start with the basics:

Fuel Filter
Plugs
Plug wires

lt1fbody355

Mine was doing the same **** it was the o2's

satinleafct

iTrader: (1)

OFF-TOPIC:
What kind of hood do you have on your car?

The LT1 That Could

iTrader: (3)

fuel or ignition related....as little as a fuel filter, as much as an opti. is the car throwing a code??

do a basic tune-up; plugs, wires, fuel filter. If that doesn't fix it. I would start looking into your ignition system, and possibly point the finger at the opti!

riodealz28

i changed my fuel filter like about 14,000 miles ago do yall think i should changed it agian and i changed my plug's and wires like 3 month's ago could it be the coil and if its the coil should i get it stock or msd ?

dhdenney

iTrader: (53)

Well 14,000 miles isn't time for a new filter necessarily but it has enough miles that it could be dobbed up. I would check fire on all 8 cyls first because it won't cost anything--just time. I had a friend who was having performance issues in his truck and I said try the fuel filter. He replaced it and that wasn't it. He checked his plugs and he had a dead one. Case in point, it could be a few things so start with some simple diagnostics. On the coil, I had a MSD Blaster once and it only lasted 10,xxx miles or so. I like MSD stuff but I would go with a different coil here. I don't think stock would really lose you anything.

riodealz28

i checkt my car today at autozone with the the diagnostics thing and it said my o2 sensor was out the sensor before the cat, i think its the manifold sensor right, could that be the problem ?

slowmofo

iTrader: (6)

dhdenney

iTrader: (53)

Manifold sensor right??? Oh, I guess that's what the computer thingie called the O2. Here's a little trick, try unplugging the O2s and the car should stay in open loop (I'm not 100% sure though). If it fixes it, then it's the O2. If you plug it back up and it starts crapping out, then it's getting bad data when it goes back into closed loop.