mass air flow sensor problem maybe

[coondawg6]

i'm betting on PROBABLE tuneup problem not maf --ie bad wires, plugs----maf is not generally known for popping exhaust---one thing you learn and learn well when you are a young mechanic(that was quite a while ago) any internal combustion engine that has a misfire under load(shaking/shimmy on acceleration, popping/backfire) is 99% of the time is due to secondary ignition failure---and yes it sometimes is that easy----computers tend to complicate the thought process not the diagnosis or repair

[forzatird]

I am also having problems like this. My 94 tbird 4.6 runs like crap when you first start it. If I give it gas the car sounds like it wants to die. After the car warms up it runs fine. I did have my computer replaced two years ago, and I also have a K&N filtercharger. One of you gents suggested carb cleaner, did anyone try it. I am somewhat ignorant on how to work on vehicles, but I changed my TRS and cleaned the throttle body, and the problem still persists. Any other ideas on what the problem, and resolution may be?

[coondawg6]

forza your problem sounds more like maf as it is very temp sensitive and symptoms get progressively worse over time--i cant remember what thread it was in but i gave a detailed explanation of operation and why its bad when cold and is fine when at operating temp--look back thru files

[vasta41]

PROBLEM SOLVED!

i finally found a tamper-proof torx bit set and i removed my MAFS and there it was, plain as day- corrosion. i bought a special electrical cleaner spray and soaked everything in sight. i scrubed the corrosion with a toothbrush and wiped it all away. i put the sensor back on and i noticed an IMMEDIATE difference. my car never drove so well.

thank you all for you help, i love you!!

[Drnaline]

Originally Posted by vasta41

PROBLEM SOLVED!

i finally found a tamper-proof torx bit set and i removed my MAFS and there it was, plain as day- corrosion. i bought a special electrical cleaner spray and soaked everything in sight. i scrubed the corrosion with a toothbrush and wiped it all away. i put the sensor back on and i noticed an IMMEDIATE difference. my car never drove so well.

thank you all for you help, i love you!!

Your welcome, glad it was something simple. Not always turns out that way, not often enough anyway.

[moekneemaker]

i to have a 95 tbird 4.6 and had the same problem i had the codes checked and replaced the mass air flow sensor replaced but it didnt fix the problem. so i took it to a shop and the took out the computer cleaned it up and it ran like new

[viper_e2000]

I was wondering about how much did it cost to take it to the shop and have the computer cleaned up, I think I might have the same problem. I started the car and it was fine but after I warmed it up I started driving and it turned off. I turned it back on and it ran fine again, but after a few blocks its started loosing power and I tried accelerating, but the car was hesitating. I turned it off and then back on and I left it in part for about 5 minutes and then I put it in drive and it was fine until 30 minutes later when I turned it off and I tried it again.
thanks for your help

[vasta41]

When I needed to clean my MAFS, I didn't have those symptoms. My car would run sluggish and hesitate when I accelerated, but it would never shut off on me. Maybe check your accelerator or the 15A fuse powering it? But either way, I never brought it anywhere to clean it, I did it myself. I had to get a tamper proof torx bit set (the star with the circle in it) to take the MAFS off. Then I soaked it with a special $5 electrical cleaner spray that I got at a Pep Boys or AutoZone. When I put it back together, it ran just fine. Whatever problem you have, good luck fixing it!

Paul

[viper_e2000]

Thanks for the info. I will try checking the fuse if that doesn't solve it then I will try to clean the mafs.
thanks

[thunderbird muscle]

Clean the computer? Ok thats a new one to me.

I love these new computers heck they are what put the bread on the table here! hahahahah sorry your pain is what keep my dad in buisness.