BBA-Reman Forums



FIAT MULTIPLA JTD NON START

Posted By snap-on 1/11/2010 7:10:07 AM
Add to Favorites0
Author Message
snap-on
 Posted 1/11/2010 7:10:07 AM
Forum Technician

Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)

Group: Forum Members
Last Active: 11/27/2012 5:40:18 AM
Posts: 251, Visits: 545
269
Rac pulled in an 02 plate fiat multipla 1.9 jtd engine code 186a80000 as non start . customer was using car , stopped and went inside for 5 mins came back out and wouldnt start ?

rac said fuel getting to injectors cos he cracked one loose switched ign on and has lots of fuel which is happening . put it on our reflex scanner and no codes present then tried snap on modis and still no codes . engine rpm is showing as roughly 220rpm when cranking . key code light goes out on dash also . tried to fire it earlier and it nearly tried but that was about it .

any ideas or burn it as these things i know are hassle !

locrep
 Posted 1/11/2010 10:07:27 AM
Forum Technician

Forum Technician - (499 reputation)Forum Technician - (499 reputation)Forum Technician - (499 reputation)Forum Technician - (499 reputation)Forum Technician - (499 reputation)Forum Technician - (499 reputation)Forum Technician - (499 reputation)Forum Technician - (499 reputation)Forum Technician - (499 reputation)

Group: Advanced Members
Last Active: 11/2/2012 6:17:13 PM
Posts: 493, Visits: 2,409
499
Hi,what rail pressure are you getting on cranking,

undoing pipes on these is dangerous & will not help find the problem.

SmileIf everything is coming your way, you are in the wrong laneSmile

john2443
 Posted 1/12/2010 1:42:24 PM
Saturday Job

Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)

Group: Forum Members
Last Active: 1/22/2010 4:42:22 PM
Posts: 2, Visits: 6
2
Seems to be a common problem this month, we have exactly the same problem, drove it, stopped on Christmas day for 5 mins (on a slight uphil if that makes a difference) got back in and it wouldn't start.

Engine management light doesn't show, computer doesn't show an error, it cranks OK, fuel gets to the injectors but the injectors don't trigger.

Suspicion is something in the electronics (ecu or a sensor) but without replacing everything in in turn until we find the answer we don't know how to solve it.

Might a Fiat dealer have further diagnostic equipment or will they be stumped as well as the engine management light doesn't show?

If you work out the solution I'd love to know and I'll let you know if we work it out first!

John

healeyowners at dsl dot pipex dot com

Angus
 Posted 1/12/2010 7:21:44 PM
Forum Master Technician

Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)

Group: Advanced Members
Last Active: 4 hours ago
Posts: 9,710, Visits: 33,015
John

Welcome to the forum.

Better to start your own thread rather than mess up an existing one.

.

snap-on
 Posted 1/14/2010 9:39:15 AM
Forum Technician

Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)

Group: Forum Members
Last Active: 11/27/2012 5:40:18 AM
Posts: 251, Visits: 545
269
requested fuel pressure is saying 458 bar but cranking is only showing 6 bar . injector voltage is 1 with ign on and 79 when cranking , rpm cranking 227 , cts voltage 4.23 and temp 8c , fuel ammount mm3/stroke 38.56 , iat 15c , iat voltage 3.11 , main injector ms 0.01 , pilot injector ms 0.01 .

obviously fuel pressure prob , getting fuel to filter and fuel at injectors . is the intank pump a low pressure unit which just delivers fuel up there and then main pump is high pressure ?

we always get hassle with these multiplas , esp these black ones !w00t

Angus
 Posted 1/14/2010 10:16:50 AM
Forum Master Technician

Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)Forum Master Technician - (10,628 reputation)

Group: Advanced Members
Last Active: 4 hours ago
Posts: 9,710, Visits: 33,015
snap-on

Have you got sufficient primary pressure?  Should be around 2.5 bar min.

Has this been run on anything other than pump DERV?

Remove the fuel pressure regulator in the HP pump and check it's tip for...   anything.

.

snap-on
 Posted 1/14/2010 3:12:30 PM
Forum Technician

Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)

Group: Forum Members
Last Active: 11/27/2012 5:40:18 AM
Posts: 251, Visits: 545
269
Just went to push the multipla out the way (late night as customer just brought a car from us and couldnt collect till now!!) and thought i will try to start it and nearly did , then on the second attempt it started and ticked over lovely even reved fine . went to move it from car sales forecourt , drove inside workshop and after ticking over for a minute just died and wont restart . tried code read again and nothing . going home now to think about it AGAIN
Performance and Diesel...
 Posted 1/17/2010 12:53:03 PM
Forum Tea Boy

Forum Tea Boy - (75 reputation)Forum Tea Boy - (75 reputation)Forum Tea Boy - (75 reputation)Forum Tea Boy - (75 reputation)Forum Tea Boy - (75 reputation)Forum Tea Boy - (75 reputation)Forum Tea Boy - (75 reputation)Forum Tea Boy - (75 reputation)Forum Tea Boy - (75 reputation)

Group: Forum Members
Last Active: 8/11/2014 2:46:42 AM
Posts: 66, Visits: 1,913
75
Hi as you say the reqd pressure does not meet the actual pressure so this is probably where your problem lies.

You are either not getting the initial pressure [in tank fuel pump] or loosing it on the rail. Check the relief valve or more likely an injector allowing too much fuel to return to the tank, this would explain the sometimes starting. Do a leak off check on the injectors if you find one allowing more fuel return than the others then that is your problem.

If these are ok and the initial pressure is as reqd then it points to the high pressure pump, but as asked is it just diesel been used and if swarf is found any where in the system then it all has to be replaced - or scrapped.

Mark 

john2443
 Posted 1/22/2010 4:47:07 PM
Saturday Job

Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)Saturday Job - (2 reputation)

Group: Forum Members
Last Active: 1/22/2010 4:42:22 PM
Posts: 2, Visits: 6
2
My usual garage have given up and I've taken it to the diesel specialist who have concluded that the high pressure pump has had it - although there was pressure at the injectors it is only 6 bar instead of lots more.

Don't know if this helps with your problem.

John

snap-on
 Posted 1/22/2010 6:10:37 PM
Forum Technician

Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)Forum Technician - (269 reputation)

Group: Forum Members
Last Active: 11/27/2012 5:40:18 AM
Posts: 251, Visits: 545
269
Ours ended up at the fiat dealer who found metal swarf everywhere in the fuel system and the whole lot needed to be changed ! would of cost a fortune .

can you guess what happened ?

yes it got scrapped and crushed into a little cube Smile  best thing to do with a multipla  , sorry


Reading This Topic

Expand / Collapse

Back To Top