95 2.4 problem

Hello all. Having a problem with the motor, it starts and idles fine but when I take off it sputters and spits from about 1500 rpm and up.if I floor it it will eventually kick in but it sounds like crap.my first thing I did was fuel filter and new ngk v power plugs,cap and rotor looked new.no change,sprayed carb clean on intake,no leaks found.no codes either.cleaned air flow sensor also.hooked up my scanner and w engine off watched the tps and it only goes up to like 70 percent when floored w ignition on but motor not running.could it be a bad tps?shouldnt it go to 100 when wot?any help would be great.thanx

 

Hello?

 

you've done some good work to try and fix it.

don't know how many miles you have on it, but did you check the air filter?

 

173k,just bought it,fixing up the body work right now,havent registered it yet,was in a minor front collision so the aircleaner box is busted up,have one coming from ebay $70 when that is replaced il see.

 

Check for clogged cats and clean your MAF. The little wire in there gets clogged up with gunk and sends bad signals. Also, in the air box is a sensor for air temp, just replace it. Its cheap and my truck ran so smooth once I did. You may have damaged both of these items if it was in a wreck and the box got messed up. Also, check your O2 sensor, 50/50 chance of a code if gone bad. You said you changed your plugs, cap and wire but did you replace the coil too? They go bad sometimes.

 

I did change the coil and cleaned the MAF.once I get the box in I will see what happens and I will change the temp sensor.will auto zone have it or is it dealer?no codes or ses light.

 

Temp sensor is available at an auto parts store

 

well still no luck,replaced cat and both 02sensors,new airbox air filter and cap rotor ngk plugs and wires,gas filter.new 180 thermostat.I didn't repl. the air box sensor but did ohm it out,used hair drier on it and it was changing from 1k to 3k ohms.thinking now tps?fuel pressure?im stumped.HELP!!!!!

 

New tps on its way.if this don't do it I don't know what to do next.will have to bring it to a shop?uhggg!!!

 

tough one

It almost sounds like a bad plug or one of the cylinders not firing correctly.

about 20 years ago I had a Chevy that had the exact same symptoms. I had changed the plugs approximately 1000 miles before the problem occurred so I did not consider that the new plugs could be the problem. I was stumped and looked over every possibility.

Turned out that I had replaced my "normal" plugs (with the large center electrodes) with platinum plugs (which have a very fine center electrode)...one of the platinum plugs had fouled up and was no longer firing. I replaced those platinum plugs with regular plugs and never had a problem with misfiring again.

I'm not saying that this is your problem, but maybe one of your new plugs or wires might be defective. Who knows?

 

I thought the same, but it is doing the exact bog under load on takeoff with the new parts, same as before.Even the plugs I took out(orig. ngk spec.)looked new.Just bought this a few weeks ago someone else tried fixing it I guess.These are parts I was going to change anyway but now im running out of stuff.Hope the tps fixes it.maybey it low fuel pressure?is there a way to ck the pump?any help would be great!BTW just put on my ebay bumper and lower spoiler,not bad stuff for$120 shipped.pretty good looking chrome for the price

 

Well I received the Fleebay TPS so I took out my original Denso .then I went to match up the part (habit I have working on stuff)fleebay part has no numbers,not a good sign.the bag had the identical numbers that was on my in doubt part.well the rotation on the ebay part is opposite.will not work,lesson learned buy OEM!!!!!So now I have to send it back and will pay the extra to get Denso

 

A miss would set off the ck eng. light.

 

well I gave up,got app at stealership in the AM.will keep yall posted

 

I'd also check timing (and make sure the distributor adjuster bolt is tight), spark plug wires for arcing, and any cracks/air leaks in the intake plumbing.

 

Not necessarily, my 95 5 lug with the 2.4 had a miss and no CEL.

 

Turned out to be a bad pickup in the distributor!went to the salvage yard and bought a oem denso for $50.runs like new now!!!!!!Also put in a new Kenwood Ipod ready stereo sys. w my 80 gig Ipod Im jamming w music now!!!!Passed emmisions today and getting my plates tommaro.thanx everyone for all the info.Dealer charged me $75 for a full diagnosis and all is good.Also did a trans drain and fill w dex 2.

 

Nice.