2.0 hdi xantia won't fire

taffy · Unread post by **taffy** » 20 Oct 2013, 13:22

well put it all together and now the immobilizer has cut in....it knows the key cause when the dorr is open it will stop the warning noise once the key is near the barrel...locks and unlocks car with fob ok...oh well i think it needs resetting but what applies to the xantia...its not bsi its crd or something i think? any ideas guys?

Unread post by **citroenxm** » 20 Oct 2013, 14:04

Transponder chip for the engine ecu and locking and unlocking remote plip are two seperate things.. the engine ecu chip is in the key blades circular plastic mould.. its NOT in the plipper or on the plipper curcuit board. In other words the locking of the car and unlocking is a cometely different part to the transponder chip that unlocks the engine ecu.

Disconnect the battery for two mins and re connect it and see what you get then. However if it REALLY has forgotton your key then you HAVE to have a lexia to re sync them together..

taffy · Unread post by **taffy** » 20 Oct 2013, 14:14

well ive had battery on and off it quite alot lately for chargeing it up and trying again...i took battery off last night to charge it and put it bk on and this happened...when u say dissconect the battery paul do u mean both positive and negative or either?
thanks paul

taffy · Unread post by **taffy** » 20 Oct 2013, 14:51

also i hear a relay under the drivers side arch clicking instead off the injection ecu clicking and fuel pump priming...where and what would this relay be?

taffy · Unread post by **taffy** » 20 Oct 2013, 17:26

ok i sorted this now as ecu connections were a little loose and wiggled the connection block and im all good again...still wont start though...my next question is when the ignition is energized shouldnt you hear a click from the fuel pressure regulator as it pushs against the ball to acheave full fuel pressure? mine is doing nothing

thanks

Unread post by **citroenxm** » 20 Oct 2013, 17:29

No you shouldn't. All you should hear is the pump in the tank running for 5 seconds and the fuel wishing around... thats all

taffy · Unread post by **taffy** » 20 Oct 2013, 18:18

yea your right mate

there is no way to test the pressure reg really without live date

gona have to go to a scrappy i think and see what i can get for brass buttons lol!

taffy · Unread post by **taffy** » 20 Oct 2013, 18:19

many thanks for your help and guideance aswell

Unread post by **citroenxm** » 20 Oct 2013, 18:21

You really could be guessing ages!

Why goto a scrappy, have you tried asking on here, you never know someone could be breaking a HDi Xantia!

It WONT be your pump, you have got fuel to the Fuel rail... So I reckon thats NOT your problem.

Tell me, How long do you crank the engine over before you stop???

taffy · Unread post by **taffy** » 20 Oct 2013, 18:30

yea i know mate

trying to do this without a lexia is a real learning curve...even know the voltage coming out of the pressure sensor in relation to the pressure lol!
yea thats true i havent even looked tbh...i will ammend this

well i hope not but the flow isnt great i hate to say...pump looks rusty inside

( it was second hand off a 306 hdi done 100k ish) and ive done 5k since was replaced
well cranking her over for say 5-10 revolutions say then reddo preheat key on off 3-4 times
im getting about 5+ 'false starts' then i charge the batt bk up indoors before the speedo goes off the clock lmao!

taffy · Unread post by **taffy** » 20 Oct 2013, 18:37

also to confirm i removed the pressure reg inside the filter housing and i have a much better flow to the pump now! (i cannot say if the is safe to do for everyday driving!!! im doing it as a test so 'I DIDDNT SAY DO IT' as i will tell you if its ok when i have her running again
just dont wana mess someones car up!

Unread post by **citroenxm** » 20 Oct 2013, 18:47

I THINK, if you find a FAR Better powerfull battery, and spin the engine over for FAR LONGER like getting on for 20 turn overs, then tell us what happens!

5 turns is not enough and certainly NOT if your battery goes down that quick!

Honestly!!

taffy · Unread post by **taffy** » 20 Oct 2013, 19:26

well i had a friend give it to me when my last battery fail...it came off a e36 325 and is 72 amp...
it might be me but i try not to crank it too much thinking off the heat produced in the cables so il give it 5-10 spins over and stop for a good say 10 seconds
when i say 5 false starts i mean in terms of 5 x 5-10 revolutions which at max would be bout 50 times (roughly i suppose) but its gonna be knackered soon i guess after all this lol!
be a good idea to try another thou....what about jump starting? would that have same effect?

Unread post by **citroenxm** » 20 Oct 2013, 19:30

Yea that would be fine, jump leads dont hurt Xantias like they do later cars!

Hell Razor5543 · Unread post by **Hell Razor5543** » 20 Oct 2013, 19:32

The problem with jump starting a Xantia is that they don't like it! What can happen is that it causes the speedo and rev counter to flick over to their maximum positions, and it can be a bit tricky to get them back to their correct positions. I don't know what (if any) other problems can occur, and I have only read about the dashboard issue on this forum.

EDIT; Paul has already responded, and (as he is far more knowledgeable about Xantias than I) his information is far more likely to be correct.

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