fiestaturbo.com

[mickeyrs]

ive been through the search results and tried pretty much all sugestions. Basically somtimes when i come up to a junction the revs drop to 500 or sometime stalls alltogether, if i un plug the tps the revs change, un plug the iscv which has been cleaned to within an inch of its life and the car dies. Tried by passing the map sensor supressor still the same new plugs and leads the chip is gafa taped in. All connections have been sprayed with wd40 as jay sugest on all replys haha. The only thing that has happened is the fans didnt kick in when the mot man had it and he said it went up past the red. There is a little mayto in the oil cap but only a tiny amount and none in the water. Oh and the gunson tester doesnt bring up any faults PLEASE HELP

[xjtaggedx]

i would also like to know this as it happens to me sometimes and also when i reverse.

[mickeyrs]

anybody got any ideas

[Dave5300]

i have the same problem

[jayrs]

lol, wd40 is the best

air leaks around the inlet and on vac pipes can cause these sort of problems.

if the cars chipped, it might be worth popping the chip out and trying it.

also the co2 can effect idle, but i dont advise adjusting it unless you got it on a gas tester.

also, the TPS can cause idle issues if its on its way out

i woulod check for leaks firs though guys, check the vac lines for signs of cracking and splitting, but thake then off and give them a good once over, if the ends a bit manky, cut it back if you can.

get some break cleaner sprayed around the inlet too.


also i read on a thread yesterday, someone changed his injectore seals and there idle problem went away.... ive never come across injectors selas being a cause before i have to say, maybe they disturbed something else while changing the injectors seals???? but ill throw that in for ya as well

[xjtaggedx]

late reply but thank you jay you the man, although i didnt understand what you meant. i am a car nub!

[andymac]

What Jay said.

ISCV could easily be fine, but if the base idle is wrong (because you have a vacuum leak that disappears when the engine's hot) then the car will stall at lights when it's hot.

Try setting the base idle yourself when the engine's nice and warm with the iscv reset then unplugged (normally a case of turning the ignition off and on a few times to reset it). You might find that with it hot and unplugged it dies straight away, that's usually a good indicator there's a vac leak somewhere.

Mine has a s**t problem where it dies when cold, but only after driving downhill and stopping

[jayrs]

late reply but thank you jay you the man, although i didnt understand what you meant. i am a car nub!

, thats cool mate, ill break it down a bit

lol, wd40 is the best, unplug sensors etc, and spray some wd40 into the plug, if there is a dry joint it will over come that and drive moisture out

air leaks around the inlet and on vac pipes can cause these sort of problems., get some break cleaner and spray it around the inlet, listen for a change of engine note, this will indicate a vac leac, do the same on vac pipes, but vac pipe and best checked by hand by bending and twisting them and checking for splits

if the cars chipped, it might be worth popping the chip out and trying it, get your head under the passanger side of the dash and look at the bottom of the ECU, if its chipped, you will notice it, could be a blue, black or even silver retangular thing stuck on the bottom, thats a chip, with the engine off, pull it out (be carful) and then try again, if your worried something might blow, disconnect the battery

also the co2 can effect idle, but i dont advise adjusting it unless you got it on a gas tester. basicly this mean you can adjust the fuel air mixture from a device on the bulk head, i dont recommend doing this without it plugged into a gas analyzing machine (the thing they use to do emissions on a mot) as without it you wont know what your doing to the mixture and you could make it run rich or lean, both of which is not good for the engine

also, the TPS can cause idle issues if its on its way out the TPS stands for throittle position sensor, this is what the ecu uses to know how wide open the throttle is, if this sends mixed or incorrect messages back to the ECU then the ECU will not fuel the car correctly. this can also have a bearing on how the car runs on idle, and ove time the track within the TPS wear out which is normally the cause of them goiung wrong

i would check for leaks first though guys, check the vac lines for signs of cracking and splitting, but take them off and give them a good once over, if the end of one or more a bit manky, like too soft through oil contamination or splitting, cut it back if you can.




also i read on a thread yesterday, someone changed his injectore seals and there idle problem went away.... ive never come across injectors selas being a cause before i have to say, maybe they disturbed something else while changing the injectors seals???? but ill throw that in for ya as well

this last part was a bit of a odd ball one for me and as i said its something i read in another tech question, i would ignor this as i dont think for a second its the cause of your problem

[fiestarsturboblack]

I had same prob mate. Thn it jus wouldnt run an i got mega pissed with it. Found out in the end it was the map sensor was screwed, try that

[xjtaggedx]

thank you very much for making the effort for me to understand, i am very grateful. you are all good guys. i will indeed go down the list to see if i can find the problem. thank you very much j.

[mickeyrs]

Old post brought back to life but got to the bottom of it after the problem got worse with it missing on boost. Tried plugs leads map sensor crank sensor and it turned out to be the fuel pump. It wasn't until an early start for work and ot sounded like a dissapointed childwhen it primed so all good now thanks for all the advice .