90Mustangfan

Ok Ive asked about this missing problem when I first start up the car. well Ive tried just about everything, I cleaned the MAF, Cleaned the IAC, Reset the computer, Checked spark plugs, and wires, and even the Timing, all that stuff is good. Here is exactly what the problem is. When ever I first start the car weather its warm or cold outside. Its idles right and normal where it should, but when I start driving it will start to miss from 600 to about 1500rpm then after 1500rpm it sounds normal and runs ok still not full power but way better not missing. almost like it goes away. but after about 5 minutes of driving it complete goes away or until its fully warmed up.It does this pretty much every time I start the car, also it has something to do with the Idle as well, normally when this problem occurs the Idle will drop down to 600rpm or so and thats how you know when it will start missing. For some reason why does the idle drop down? Can anyone help me with this problem, I would rather not take it to a mechanic If i can help it.

bobby

did u clean the MAF inside the black cover?

birdman076

I would go with the ECT sensor as mine did the same thing and that was the problem.

grabbem88

you know mustangs are like a big fat disease.....battery drains, funky misses,idle screwing up,ect..

too add my car has a funky miss too.....i'm starting to think my o2 harness is messed up,or the o2's all together....ran race gas in it
...before i changed out my fuel pump,and new gas tank...[&:]

Tims 88GT

my 92 is missing and crap and it wont stay running, and i cant figure it out it is really pissing me off, now it just wont run but it is out of gas so i think that has somethin to do with it LOL im so stupid sometimes[:@]

Aliate X

What is that? I have the same problem minus the idle problem. Car runs like dog**** for the first 5 - 15mins of driving.

90Mustangfan

Im not that stupid, but yes I cleaned the little wire underneath the MAF. But ill look in the manual and see what a ECT sensor is, But man this is pissing me off when ever I start the car it misses and doesnt run with full power for 10 minutes or so, anyone else have any ideas on how to fix?

grabbem88

google ect sensor....and find AFM something it got some good info..

Mustang5.0_GT

yeah google

Aliate X

http://www.allfordmustangs.com/Detailed/59.shtml


Found a really good page in the process.