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Old 13-01-2009   #16
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Re: bravo 1.4s trouble starting when hot



Sultan is rite you don't need to check the gap. If you read the page it explains why tou dont need to adjust the gap. Although on the next page there is the ideal tolerences that Fiat recomend for the sensor but I wouldn't worry to much about it. I'll post it for you later so you have got it for reference just in case you do need to use
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Last edited by fiat_-_bravo; 13-01-2009 at 08:55.
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Old 14-01-2009   #17
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Re: bravo 1.4s trouble starting when hot

Changed cps sensor or tdc sensor as is called-41squid later the cars warmed up,fan kicks in for a mo,temp just below 1/2way,idling gr8, looks gr8 so turn off leave for 5-10 mins,try to re start,Hey Presto it aint havin it,no fire up! mess with ht leads at coil no1 & no4, unplug electric connector 4 or 5 times & replace then after a few trys It goes.Same problem only my wallets a bit lighter-SO WHATS CAUSING IT!!!!!!!!!!!! over to you the fiat forum.
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Old 14-01-2009   #18
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Re: bravo 1.4s trouble starting when hot



On the plus side u won't need to replace the CPS/TDC sensor anytime soon lol

What plug did you unplug I'm guessing its plug on the coil??

The next time the car won't start just leave it for 5 or 10 mins that will rule out weather or not it is anything to do with everything your jiggiling about.

Does the "CODE" light go out on the dash when the engine starts?

Does the "CODE" light go out on the dash when the engine won't start?

When the engine won't start does you here the starter motor or just a click?

Also this is a long shot but what key are you using the red or the blue key?

Have you noticed if the charge light comes on when the engine is running?



We will get to the bottom of this it will be probably be something stupid
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Last edited by fiat_-_bravo; 14-01-2009 at 22:03.
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Old 15-01-2009   #19
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Re: bravo 1.4s trouble starting when hot

coil leal no1

all interior warning lights work as normal

engine spins over as normal,just wont fire up

no prob with alternator,new batt 3mnths ago,correct one for engine

tried both colour keys,no difference

goning to try scrapyards to get secondhand coilpack if cheap just to see if it works?
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Old 15-01-2009   #20
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Re: bravo 1.4s trouble starting when hot

Yeah probably looking at about 5-10 for a coil pack, or this time of year you will have a big coat on you could slip it into your inside pocket.

Not that I've ever done any thing like that
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Old 15-01-2009   #21
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Re: bravo 1.4s trouble starting when hot

did you used to be called "the artful dodger"once then?lol,i ve had mates put shock absorbers down wellie boots in the old days but srappys down this way have got to organised bring back piles of cars before health & safety took over! Anyways worth a go with coil,least it would eliminate that eh. cheers ttfn.
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Old 15-01-2009   #22
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Re: bravo 1.4s trouble starting when hot

Power steering pump is the biggest item I've managed to get out without paying for.

But I think 1 of the scrapyard's I use or should I say used has seen me because i went there a few weeks ago he shot out the hut said what you after, I replied Fiat Bravo he said we have'nt got 1 at that i turned round and saw 1 2nd car up I said theres 1 there he said you cant take parts off that.

So i went I've seen the size of the grease monkies there and I don't want to upset them.
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Last edited by fiat_-_bravo; 15-01-2009 at 00:33.
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Old 15-01-2009   #23
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Re: bravo 1.4s trouble starting when hot

Nice one mr T,i will post my findings when ive got a coil sorted.cheers.
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Old 15-01-2009   #24
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Re: bravo 1.4s trouble starting when hot

I FINALLY ADMIT DEFEAT!!!put another coil on when it would'nt start up and no different.put mine back on mess about with ht leads and after around 8 attempts "right as rain".Any one want a tempermental bravo cos iam really bored with it.
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Old 15-01-2009   #25
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Re: bravo 1.4s trouble starting when hot

Quote Originally Posted by martmach1 View Post
Nice one mr T,i will post my findings when ive got a coil sorted.cheers.
Hi, sorry to see you're having the dreaded hot-start problem.
I will be waiting to see if you ever get to solve this. My wife's 1.4 Brava started to do the same about 18 months ago. With the engine hot it will run OK and restart immediately if it stalls in traffic. It won't start if when hot, it is left for a few minutes. It needs to be left for an hour or two, at which point it fires up OK.

So far I have changed:
Fuel pump
Crank position sensor
Ignition coil
ECU (for a brand new unit)
Temperature sensor
Plugs
Plug leads
Oxygen sensor
Knock sensor
Battery
Starter motor (just in case it was dragging the supply voltage down).

If there is anything left I've missed maybe sombody on the forum can advise me. It could be that the time you leave the engine makes the difference, not any electrical connections you might move about. With the insurance shortly due for renewal we now have to decide whether the keep the Brava or ditch it. In the past year it has only been used for the odd journey to the airport. When we return it always fires up first time from cold.

Best of luck!
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Old 15-01-2009   #26
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Re: bravo 1.4s trouble starting when hot

sorry you have same problem steve,looks like you have changed most bits,i think were not alone with this problem!

my other car is a 71 mustang(hence my name-mach1)now thats a "real car" eh.
also play with a dr350!

cheers mate.
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Old 15-01-2009   #27
Bravo 1.8 HLX FTW
 
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Re: bravo 1.4s trouble starting when hot

bring it my house i'll have a look

you need to start checking powers and earths when it's hot and see whats lacking

hydraulic tappets might not be opening valves properly at starting speeds when hot maybe but i doubt it

hot starter motor taking too much current posability

park on a hill wile hot and bump it
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Last edited by The Sultan; 15-01-2009 at 23:21.
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Old 16-01-2009   #28
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Re: bravo 1.4s trouble starting when hot

STEVIEBABY have you had your fiat plugged into a "diagonastic" wotsit to get any error codes?only iam debating getting mine checked out but dont want to spend more cash for nothing.please let me know. thanks for more ideas Sultan,keep em comin dude!
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Old 18-01-2009   #29
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Re: bravo 1.4s trouble starting when hot

Quote Originally Posted by martmach1 View Post
STEVIEBABY have you had your fiat plugged into a "diagonastic" wotsit to get any error codes?only iam debating getting mine checked out but dont want to spend more cash for nothing.please let me know. thanks for more ideas Sultan,keep em comin dude!
Hi again - I could take the car to a garage get it on their diagnostics equipment. The problem is we're in the Isle of Man so we don't have much choice of garage. I only know of one garage that has the equipment and I had a very bad experience with them. Three years ago the Brava needed a new camshaft. I bought a complete new kit, followers, lifters and gaskets. The garage agreed to fit the kit while were were away on holiday and advised me that the work would be 300 - 350. We returned two weeks later to a bill of over 1500; much more than the car was worth. The garage told me that they had numerous problems with stripped threads in the cylinder head and had to machine these out and fit inserts. Although far from happy I paid the bill, believing the car would be OK for many miles to come.

A year later the new camshaft began making horrible noises. When I checked it I found that the stripped threads in the head (for the camshaft carrier bolts) had not been repaired at all. The bolts had simply been pushed into the holes. This caused a lack of oil pressure to the spray bar and failure of the new camshaft in less than 4,000 miles. I got another camshaft kit and fitted it myself. The stripped holes I re-threaded and repaired with helicoil inserts.

After being reassembled the engine ran really well - until the hot starting problem. I have actually tried to start it by rolling it down a steep hill when hot but it won't fire at all. Today I had a further look at it. After getting the engine hot I then left it the required 10 minutes. As usual it would spin round OK but refused to fire. I checked the spark and indeed there a nice big fat spark at the HT lead. I checked the voltage on positive supply to the injector and got the full +12 volts. I wasn't able to detect anything on the negative feed. The injector is operated directly from the ECU, putting out a 'switched' -12 volts.

It appears that for whatever reason the ECU isn't operating the injector when it is hot. As I have changed every sensor and the ECU itself I am still at a loss. I suppose I need to decide whether to scrap the car or take it back to the 'rip off' garage. The problem is I have read of similar hot starting stories which have defeated Fiat dealers with diagnostic equipment. Maybe somebody on this forum will come up with something.

Your Mustang sounds good. There aren't many cars that fire up any enthusiam for me but that is one! Yep - I still remember seeing Bullitt at the pictures many years ago. Steve McQueen could certainly drive (and ride).
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Last edited by steviebaby; 18-01-2009 at 17:26.
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Old 18-01-2009   #30
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Re: bravo 1.4s trouble starting when hot

Sounds a real nightmare story steviebaby,sad that these great little cars suddenly decide to go tempremental when warm,ive got off lightly compared to the story about yours!
Maybe i will try the diagnostic test route its 35 + vat locally.Thanks for the prompt reply-as for the "king of cool" yep there was a bloke to admire,he certainly had a lot of boys toys through out his lifetime and that famous gt350 car chase gets a regular airing on my dvd player!!! Mustangs give great smiles per gallon,cheers mate.
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