93 Acceleration problem

[Gonzo]

My vert hesitates/ doesn't want to accelerate from a dead stop but when it gets above 2000 rpm is drives fine. ( This happens if if I've been driving longer than 25 mins). I've checked for any vacuum leaks, replaced the plugs, wires, filter, cap, rotor, coolant temp sensor, cleaned the MAF and throttle body so far and it's still the same. I do not have access to a multimeter to check the voltage on TPS yet. Any ideas what could be causing this ? Thanks.

Here's a quick pic

[edward08]

When u get a digital mulitmeter do a ohms test on the power transistor it is a 3 wire transistor right newt to the coil.

[edward08]

next to the coil

[Gonzo]

Do you think that could be part of the problem ?
Modified by Gonzo at 7:22 PM 9/17/2008

[edward08]

yes i had the same problems with my car and i tested it and it came up bad . so i spent 150 dollars for a new one and now i do not have a problem at all.

[Gonzo]

Ok I'll check that also when a I get the multimeter. Thanks

[GoinTopless240]

Just a thought, but has the car been sitting up? I've had simliar problems with a clogged fuel pump strainer. It's actually pretty easy to get to. Go to the trunk and pull the fuel pump out (have an extra gasket around - as they usually go south as soon as gas touches them - go figure). Autozone carries the strainer for less than 20 bucks and it just pops on the bottom of the pump. It will many times stutter when off throttle cause fuel pump is not building big pressure. When you get into the throttle - poof - more pressure. The downside is that it will shorten the life of your pump. Cheap fix. You can release the pressure in the lines by pulling the fuel pump fuse and cranking it a few seconds. Pry off the hoses on the cover. Disconnect the plug. Pull out the fuel pump (takes a little skill). The fuel strainer (or sometimes called sock) is usually held on by a little clip (just pulls off with a little effort). Fuel pump will thank you and hesitation is usually gone. It should be done every now and then. Good Luck.

[edward08]

yes u are right that also could be the problem as well.