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Old 18-08-2007   #1
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Unhappy Bravo HGT Lacking Power

Bought a Bravo HGT a while ago and it just doesn't seem to have the power it should. It is an X plate so is the 155 version. I have changed the MAF sensor but hasn't made any difference. Is there anything I should try before going to Fiat. I am planning to check the compression next week, what pressure should I be getting on each cylinder.

Thanks.
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Old 18-08-2007   #2
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Re: Bravo HGT Lacking Power

When was the last service? and what did it have done?

Scotty
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Old 18-08-2007   #3
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Re: Bravo HGT Lacking Power

Was serviced about 2000 miles ago only had oil change etc. Had a cambelt change just before I bought it, car has done 92k.
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Old 18-08-2007   #4
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Re: Bravo HGT Lacking Power

Mabye a change of leads spark plugs fuel fillter, a good pannel filter would sort it out,if all of the above are getting on a bit they will affect performance

Try that first and see how you get on?

Scotty
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Old 18-08-2007   #5
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Re: Bravo HGT Lacking Power

I have changed the plugs and air filter since the service but no difference. Was thinking of changing the fuel filter as well as carrying out a compression check.
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Old 19-08-2007   #6
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Re: Bravo HGT Lacking Power

possibly, timing is out..

However first Would do all the normal service procedures, fuel filter etc. Also whack some injector cleaner through the tank and put some high octane fuel in it.
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Old 19-08-2007   #7
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Re: Bravo HGT Lacking Power

Can I check if the timing is out or is it best to take it to Fiat?
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Old 21-08-2007   #8
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Re: Bravo HGT Lacking Power

Checked the compression this evening and have 200 psi on each cylinder. Good result I think.

Spoke to PowerFIAT who suggested I try another MAF sensor as the ones on e-bay can be dodgy. Should of guessed as 40 on e-bay v's 220 from Fiat.

Anyone in the Bristol area got a MAF sensor I could try before I fork out some serious cash?
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Old 21-08-2007   #9
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Re: Bravo HGT Lacking Power

Quote Originally Posted by cornholio View Post
Spoke to PowerFIAT who suggested I try another MAF sensor as the ones on e-bay can be dodgy. Should of guessed as 40 on e-bay v's 220 from Fiat.

Anyone in the Bristol area got a MAF sensor I could try before I fork out some serious cash?
do not buy the ebay one they are naff.

i have a 147 MAF but i know its different
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Old 21-08-2007   #10
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Re: Bravo HGT Lacking Power

220 for a MAF JEEZZO, i know of place ware a brand spanking Bosch jobby can be had for 80 + 5 odd delivery

Scotty
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Old 21-08-2007   #11
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Re: Bravo HGT Lacking Power

Quote Originally Posted by scottyJTD View Post
220 for a MAF JEEZZO, i know of place ware a brand spanking Bosch jobby can be had for 80 + 5 odd delivery

Scotty

where? pm if needed.
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Old 21-08-2007   #12
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Re: Bravo HGT Lacking Power

Where Scotty?
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Old 21-08-2007   #13
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Re: Bravo HGT Lacking Power

get under the car with someone to dab the accelerator and see if the exhaust is leaking anywhere, if it is you will be lossing power though this, Ive had this problem a few times with the cars I owned in the past.
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Old 21-08-2007   #14
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Re: Bravo HGT Lacking Power

Quote Originally Posted by cornholio View Post
Where Scotty?
Do a search on Boo and you will find all deatails there

Cheers Scotty
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Old 22-08-2007   #15
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Re: Bravo HGT Lacking Power

dont buy an ebay maf, dont buy any maf, just disconnect yours. if you notice the power returns at higher revs it means your maf is the problem, so take it off and carefully clean the hot film. do not use an oil based cleaner, some brake fluid on a clean lint free cloth does the trick nicely. if the problem persists it means you need a new maf, then its scrapyard time for a £10 maf, making sure you get a bosch one. many other cars can supply the maf, inlcuding almost all twinspark alfas.

by the way, your compression test result is excellent, it suggests you've got a healthy engine
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