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i have a 95 f-150 when u let it sit for 10 min or so then start it up it ideals fine for like 1 min then bogs and spits spuders for like 1 min then it is fine. if u hit the gas when this is hapening it will not axcel for like 5-10 sec then it takes off like a bat out of hell i put on a new tps,iac,temp sensor,egr,ecm, any help
you should have come here before you spent all of that money on changing all of those parts. first of all dont Chang anything else until you check it out and see it is bad it only complicates things.
Did you check each of the new components that you put on? dont assume that just because it is new that it will work perfect.
what engine are you working on and what year and transmission? cant help you with out that info.
check all of your vacuum lines and elect. connections and one time more for codes.
get back to us with that info and we will figure it out.
it is 95 with a 5.8 and e4od i have cheaked evey wire and every sensor 8-9 time i have cheaked every peice of the vac i have pulled the codes 30-40 times i have spent over $3000 at five shops still not help
OK then you have gone through hell already so we need to get this thing going.
you said it idles fine for like 1 min then bogs and spits spuders for like 1 min then it is fine.
OK it should idle fast and then kick down at about 1 min. and again in about 1 min. so during the second min. is where the problem is and then it straitens out .
Can you check to see if the EGR is opining during this time? also it would be good info if you could put a timing light on it and see what the computer is doing with your timing at this 1 min time.
get back on here when you have that info and I am going to crack some books on this tonight.
timing is fine but the egr if i put a vac to the egr it will do the same thing but but there is no vac to the egr at any time unless it is akting up
I realize that you have set the timing with the S disconnected. but what I want you to do is watch the timing marks with the s connected at the time when the problem happens to see and note what the computer is doing with your timing if anything. this can give you some info that can help to find the problem.
it would also be good to note anything else that is going on at that time such as the smell of the exhaust. to determine if it is running rich or lean for that one minute of time.
the computer runes through a series of routines on start up and these will vary according to the conditions. and your computer is doing something at a certain point in the warm up that is either callusing the problem or it is receiving information that is causing it do make a chaging at the wrong time. it is our job to find out what is going on so we can fix it
it is 95 with a 5.8 and e4od i have cheaked evey wire and every sensor 8-9 time i have cheaked every peice of the vac i have pulled the codes 30-40 times i have spent over $3000 at five shops still not help
Not possible.
Every sensor, every wire and every part of the vacuum system and still no red flag...
How did you do all this testing and what kind of tools and equipment did you use to do all of this testing??