[94 5.0]

Hi guys, first time i post anything here. been doing some homework on why i have an idle at 1500 sometimes, but sometimes not. looks like i need to reset the idle (saw a nice write up) and im also gonna check out the salt and pepper shaker pins. i just got my 94 GT convertible less than a week ago, and really wanna do some preventative maintenence on it. I was looking online and found IAT sensors ranging from $90 down to $25, but both look different and wanted to get some feedback on which one i should use or works best.

the top is $80, and the bottom one is only $25. any difference?

also wondering what our standard gap is for sparkplugs, mine are shot and dont wanna base it off one of those. its a stock 5.0 motor no mods, should i stick with standard copper plugs or go different?

[94 5.0]

sorry, wouldnt let me post a link since that was my very first post, here is the link to the IAT sensors i found with a huge price gap between them:

Race Pages - Mustang Iat Sensor - 1994 Mustang IAT Sensor

[AdderMk2]

Originally Posted by 94 5.0 Hi guys, first time i post anything here. been doing some homework on why i have an idle at 1500 sometimes, but sometimes not. looks like i need to reset the idle (saw a nice write up) and im also gonna check out the salt and pepper shaker pins. i just got my 94 GT convertible less than a week ago, and really wanna do some preventative maintenence on it. I was looking online and found IAT sensors ranging from $90 down to $25, but both look different and wanted to get some feedback on which one i should use or works best. the top is $80, and the bottom one is only $25. any difference? also wondering what our standard gap is for sparkplugs, mine are shot and dont wanna base it off one of those. its a stock 5.0 motor no mods, should i stick with standard copper plugs or go different?

#1. Your car doesnt have the "salt and pepper shakers"
#2. clean or replace your IAC
#3. check for vac leaks. The rubber hoses off the bottom of the upper intake manifold go bad, and its a common point of failure.
#4. Why are you replacing your IAT? Is your check engine light on? did it throw a code for it?
#5. Use Autolite 25 plugs, gapped at .048"-.052"

[mayosailor27]

yea man, check for codes? do you know how? jumper wire technique and count flashes dont waste money of one of those code readers for thirty bucks. here-- examne picture and run codes EVEN IF YOU DONT HAVE A CEL. the computer still will store the code. For a billionth of a second you cel is on the computer will store it. here the pic

[Bubba95SN]

Gee, Adder nailed it.

[94 5.0]

thanks guys for the response, i have no check engine lights and everything is running fine except i have a high idle at about 1500 when i push the clutch in and it does the same thing only sometimes when i start it, but not all the time. i planned on replacing the IAC regardless. thanks for the spark plug gap also. im gonna check on the codes tomorrow to see whats going on (if anything).

this car is sooo different, the car i just sold was a 2003 monte carlo ss. i went from a supercharged automatic 6, to a NA manual 8. adjustments (to me and the car) both need to be made haha. thanks for the help. anything else you guys recommend checking on as a standard rule of thumb? it has 133,500 on it. probably gonna switch to 3.73 gears soon.

[94 5.0]

another question, is the idler control valve a common failure point too for the symptom im having? how could i check that as well? Im building a checklist to go over for wednesday when im off work.

1. change plugs
2. check for vacuum leaks
3. ???