so my car has been doing this for about two days now...the first time i start it up after its parked the car well idle like usual and ill of a sudden jump up two about 2000 rpms and the check engine light will flash twice then it well go off and the car idles fine again does anyone know what could cause this? i was thinking iac valve but wanna get some advice first also the cel is stays off any advice would help thanks..
really puzzled...
- Thread starter 95SLOW5.0
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CC'S95GT
Post Whore
95SLOW5.0 said:
look in a haynes/chilton manual!!
2002BLGT
Active Member
invest in one of these , makes it easy to read the codes and do cylinder balance test etc with it ......
http://www.amazon.com/Equus-3145-Ford-Digital-Reader/dp/B000EW0KHW
http://www.amazon.com/Equus-3145-Ford-Digital-Reader/dp/B000EW0KHW
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94svtturbo
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2002BLGT said:
Agreed!! Your diagnostic port will be on the side of your passenger strut tower. between the side of the strut tower and the firewall. in that area somewhere.
Dont be fooled if you have an OBD2 port under your dash. My 94 Cobra has one and the 95 GT i used to own had one too. They do not read at all. Look for your OBD1 diagnostix port under your hood.
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i got the chilton book today and i used the the paper clip method and i counted the flashes im almost sure i got the number 124 witch it said tps more voltage then expected...so i changed it but it didn't make a difference im confused
CC'S95GT
Post Whore
did you measure tps volts? should be about .98vdc at idle.
when was the last time you cleaned the maf? and iac? tune up?
how long has you UDP's been on? They are know to cause low alt. performance.
when was the last time you cleaned the maf? and iac? tune up?
how long has you UDP's been on? They are know to cause low alt. performance.
Mine does the same thing.. not sure why. It resembles when you run a test for codes with the engine running. It pegs the IAC, making you rpms shoot to around 2k for a second or two. Its as if the computer is running a code test on its own.
i got a hold on a scanner today and i came up with three codes first one was 314...air system inoperative during koer..then 311...thermactor air system not operating..556 primary fuel pump circuit failure...can anyone please point me in the right direction...thanks an advance..
CC'S95GT
Post Whore
your codes are all over the place. I suggest you unplug the battery for 10-15 minutes then pulg it back in so the puter will learn fresh parameters. take it for a drive then pull codes again.
does it run fine the rest of the time?
does it run fine the rest of the time?
it runs somewhat fine i been noticing the idle likes to hang a bit like after u floor it..it takes a little bit to idle normal again...i also cleaned my egr today im really confused i really dont wanna go to the dealer but i dont know wut else i can do...
CC'S95GT
Post Whore
unplug the IAC while the car is running. If you don't notice a differance, your iac is bad.
