#1: 1.4hdi throttle when warm issue Author: Chevmat08, Location: PeterboroughPosted: Wed Aug 29, 2018 10:31 am ---- Hi peoples! Picked up a 206 1.4hdi 3dr last night with a bit of a weird problem. When hot, i.e. after a long journey, the throttle is unresponsive if i turn ignition off and back on.
So ill leave the car, come back 10 or so minutes later and itll ti k over fantastic. But its as if im not even touching the throttle. no EML, no other issues i can find. I either have to let it cool down or if i get the car rolling, stomp accelerator a few times and it springs to life.
Any ideas? Also had an aftermarket radio thats wired erong (stays on after ignition off, doesnt hold memory)
Thanks for any help!!
#2: Re: 1.4hdi throttle when warm issue Author: gazza82, Location: South BucksPosted: Wed Aug 29, 2018 11:00 am ---- It could be the crank sensor might be starting to go .. when warm they can stop the car running and OK when cool ..
#3: Re: 1.4hdi throttle when warm issue Author: Chevmat08, Location: PeterboroughPosted: Wed Aug 29, 2018 2:26 pm ---- But the car runs sweet. Just nay throttle when i push it, as though its unpkugged almost. Spoke with an auto electrician who suspected a mechanical fault on injector area, or evu fault because theyre common on this car. But i dont see why heat would contribute to the latter.
Quite a strange one. My dads suggested i blast the engine end with some contact cleaner/GT85
#4: Re: 1.4hdi throttle when warm issue Author: VorTechS, Location: Gloucestershire, UKPosted: Wed Aug 29, 2018 2:40 pm ----
Chevmat08 wrote:
Also had an aftermarket radio thats wired erong (stays on after ignition off, doesnt hold memory)
Thanks for any help!!
Once upon a time this used to be THE most frequently asked question around here. I suspect it might have been one of the influence behind this Beginners Guide
#5: Re: 1.4hdi throttle when warm issue Author: Chevmat08, Location: PeterboroughPosted: Wed Aug 29, 2018 3:18 pm ---- Ive already seen the yellow/red swap meme. I havent bothered looking into it atm as the radio wasnt even fitted. Ripped it out for now
#6: Re: 1.4hdi throttle when warm issue Author: Chevmat08, Location: PeterboroughPosted: Wed Aug 29, 2018 6:45 pm ---- UPDATE: can confirm that getting to 2nd gear then pumping throttle gets it to come back wheb it wont respond... Weird?
#7: Re: 1.4hdi throttle when warm issue Author: Chevmat08, Location: PeterboroughPosted: Fri Aug 31, 2018 5:58 am ---- Has been suggested to me it may be a small air lock in coolant causing a temperature issue but im not sure about that.
#8: Re: 1.4hdi throttle when warm issue Author: gazza82, Location: South BucksPosted: Fri Aug 31, 2018 9:24 am ---- It could ... they migth be some bleed valves on the rad or hoses (we had them on the 2.0 CC but I can't remember seeing them on the 1.4! and I've just drained and refilled my coolant after a core plug issue)
But it's more likely to be the sender in the thermostat housing.
#9: Re: 1.4hdi throttle when warm issue Author: gazza82, Location: South BucksPosted: Fri Aug 31, 2018 9:27 am ----
Chevmat08 wrote:
UPDATE: can confirm that getting to 2nd gear then pumping throttle gets it to come back wheb it wont respond... Weird?
It's a pain to get off but I would check the cat. It should fill the "bulge" in the downpipe .. but on mine it had collapsed to the size of a large grapefruit and was rolling around in the bottom. If it rolled the right way (with a flat side down) the exhaust was OK but if a round side rolled to the bottom it strangled the car. Not great when going up hill and being chased by an artic!!
#10: Re: 1.4hdi throttle when warm issue Author: Chevmat08, Location: PeterboroughPosted: Fri Aug 31, 2018 10:37 am ----
gazza82 wrote:
Chevmat08 wrote:
UPDATE: can confirm that getting to 2nd gear then pumping throttle gets it to come back wheb it wont respond... Weird?
It's a pain to get off but I would check the cat. It should fill the "bulge" in the downpipe .. but on mine it had collapsed to the size of a large grapefruit and was rolling around in the bottom. If it rolled the right way (with a flat side down) the exhaust was OK but if a round side rolled to the bottom it strangled the car. Not great when going up hill and being chased by an artic!!
thabsk for the suggestion. The car drives lovely, idles perfect. No lumpy driving or change in acceleration at all. Just the throttle wont respond when i start the engine after a long drive. No engine ligta, no errors on an OBD reader and no one near me gas PP2000 so im a bit at a loss where to start chasing
#11: Re: 1.4hdi throttle when warm issue Author: Chevmat08, Location: PeterboroughPosted: Fri Aug 31, 2018 4:19 pm ---- Going to change coolant this weekend as what ever is in it has no colour? Im assuming oat?
#12: Re: 1.4hdi throttle when warm issue Author: Steve206, Location: UKPosted: Fri Aug 31, 2018 6:58 pm ---- I would also like to throw into possible consolations the MAF sensor. Next time it plays up try unplugging it and see how it responds.
#13: Re: 1.4hdi throttle when warm issue Author: Chevmat08, Location: PeterboroughPosted: Fri Aug 31, 2018 7:27 pm ---- Weirdly it hasnt happened again... Yet LOL Yes im gonna unplug maf next time. Still waiting foe my Haynes in the post, MAF is just before throttle body yes?
#14: Re: 1.4hdi throttle when warm issue Author: Chevmat08, Location: PeterboroughPosted: Sat Sep 01, 2018 5:08 pm ---- Unplugging a variety of sensors made no difference. Still confused.
#15: Re: 1.4hdi throttle when warm issue Author: wobblycat, Location: walesPosted: Sun Dec 30, 2018 10:13 pm ---- Having the same issue - found a dead glow plug and replaced it, other three are fine.
No clicking sound from glow plug relay when testing on PP2000.
Bought a replacement one and that also doesn't click.
There is power getting to the relay (tested with multi meter).
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