HDi 2.0 8V wont start when cold - FIXED - NOT - YES

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taffy
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT

Post by taffy »

yea theres something a miss with mine...im getting 9v coming out the ecu on the signal wire somehow.ive read ppl gettin new ecu sheared cam woodruff key..ive tried every obd software i can find and not one would give me fuel pressure readings...i thought id have a lexia by now but just cant afford one with a baby due v soon lol
when i do get a lexia atleast i could also help others pulling theyre hair out lol
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT

Post by citroenxm »

Stupid Q time.. have you changed the fuel filter john?
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jgra1
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT

Post by jgra1 »

yes Paul.. was the first thing I did - as astraman noted, there were some filings in the housing.... :shock: ...

then I took glows out, checked them and one was a duffer.. changed that one only..
I checked for supply to glows, it is there, albeit for about 5 seconds..
I changed to a new battery, just once, overnight, and still she wouldn't start in the morning
I changed the air filter for no reason except it needed it.
I changed the fuel HP pump, then she started quite well again, straight after doing that.. but was running oddly at low throttle positions..
so I put the old PR back in the new pump, then she started well enough, and did not run unevenly..
then a week later.. she is back to needing easy start.. and in the last week, has stopped starting after only a few hours, whereas before it was only an overnight coldnight problem

I think a red herring has swam near.. the title is starting problem when cold.. because it happened for the first time after a cold night in France, just like that...

now I need to think more logically.. something, somewhere, is wearing out.. and its a slight coincidence with the cold weather.. maybe..

I have not changed the starter yet.. but it does turn over as fast as I would expect..subjective though :)

there is one more thing.. I know I will get crucified for this :) - I fitted a rail tuning box.. not that long before France.. I still haven't removed it, and this is the first job for sat morning.. :O

J
taffy
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT

Post by taffy »

hopefully thats the problem mate :)
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jgra1
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT

Post by jgra1 »

not sure if the vid will work.

https://lh6.googleusercontent.com/6g732 ... -h207-p-no

just a normal day really., car is pretty constant at 225 rpm when turning over..
Swapped to the new pressure reg earlier, and removed the tuning box.. not expecting a great result from that really.. but it's easy work..

be interesting to see what the starting RPM is when engine is warm.. by disconnecting the injectors etc and putting lex on.. netbook battery was to flat to try that earlier ..
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT

Post by jgra1 »

well.. started perfectly this morning.. with that spare pressure reg in.. tempted to say that was the problem all along. Annoyingly, the car is running really badly with it in.. fixed one problem and got another :)

not sure if the car will even get me to the barn where the old reg is sitting..
taffy
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT

Post by taffy »

oh mate i feel ur pain :(
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jgra1
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Post by jgra1 »

car is absolutely fine ;)
long story short, in removing the tuning box I didn't push the rail connector home.. so after 30 miles it was misfiring badly,,
with that plugged in, and the spare PR working well.,. the car starts on the button all the time, and runs well... !!

sorted..at last

now.. where is the tuning box gone..missing it badly.. I am even using the gearbox now :( ;)
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT - YES

Post by taffy »

great news!!
well done :)
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addo
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Post by addo »

The thread in summary:
jgra1 wrote:Ohhh...
Ooooh!
Oh no...
Oh yes...
Ohh yes....
Ohhh!
Ooohh!
Yes!!!
Ohhh....
Yesss....
Yes!!!!!
citroenxm
Posts: 8061
Joined: 30 Dec 2004, 23:10
Location: Somewhere in North Wales, Anglesey
My Cars: M reg Xm S2 2.1td Auto Exclusive. 269k and rising
L reg XM S1 V6 12v Manual SEi
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2008 Peugeot 207 Sw 1.6 16v hdi. 217k and rising
2010 Peugeot 207 SW 1.6 8v HDi 161k and rising
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT - YES

Post by citroenxm »

Was that a tuning box that plugged into the rail pressure sensor then john?

Never liked them from the off... mine plugs into the injectors directly and the cars harness into the box harness..

Good result. Prooves my dislike for the rail sensor tuning box..

Well done!
Sharing a pug 207 1.6 hdi Sw 16v.
M reg Xm 2.1 td auto exclusive S2 269k and rising
L reg XM V6 12v SEi auto .. Light project

A very sad...
1994 XM 2.1 d auto
jgra1
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Honda V F R 800 5thG / MT500 Armstrong
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT - YES

Post by jgra1 »

addo, thanks ;)

Paul..

I don't think so..
I think the pressure regulator must have stopped car starting up since October, and a spare reg has fixed the problem..
I really would welcome other theories.. for what its worth, when I initially tried the spare reg (with tuning box still fitted) the car started well but it was running a little unevenly on part throttle.. so I changed back and the starting problems came back

I guess the next test is to plug TB back in and keep current PReg in, and see.. but I am not going to think about that till after this manic time of year ;)
taffy
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT - YES

Post by taffy »

i wouldnt plug it bk in....i wanted a tb but i think id rather stick as standard...its problems u dont need especially now its winter :)
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT - YES

Post by BX »

Glad you got sorted. Don't go fixing what isn't broken.
taffy
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Re: HDi 2.0 8V wont start when cold - FIXED - NOT - YES

Post by taffy »

isnt the lexia just (-expletive removed-) awesome!!!!!!!!!!!
i love it!!!!!!
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