General 1.3 multijet punto van... please HELP :-s

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General 1.3 multijet punto van... please HELP :-s

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Jul 17, 2008
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Apologies for posting this again, but it's driving me mad :(

i bought a 1.3 TD multijet punto van (04) last month and whenever i put my foot down a little and the revs increase the check engine light pops up and it goes into limp home mode.

engine diagnostics comes up with error code P0238. i've tried replacing the MAP sensor and disconnecting the air flow meter. neither has fixed the problem.

my closest fiat garage is miles away and they haven't been very helpful thus far. any other suggestions/experiences of similar nature would be great.
 
The list I've got shows P0238 as "Turbocharger boost sensor A high". As your engine is a turbo diesel, it probably has a pressure sensor for the turbo. The "high" means that the ECU is sensing 12V from the sensor rather than a meaningful value. First line of attack would be the connector (Fiats are notorious for connector problems).

Red.
 
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Thanks Red.

Is the sensor you refer to something different from the MAP sensor?

Other weird stuff... the glow plugs light comes on once every 20 starts and even less frequently the LCD display flashes on and off (restarting the engine stops this).

One good thing about not being able to drive above 3000rpm is that I'm getting 80mpg... on the down side i'm being overtaken by smart cars :-( (for the love of FIAT, someone please help me get this fixed!)

cs
 
The list I've got shows P0238 as "Turbocharger boost sensor A high". As your engine is a turbo diesel, it probably has a pressure sensor for the turbo. The "high" means that the ECU is sensing 12V from the sensor rather than a meaningful value. First line of attack would be the connector (Fiats are notorious for connector problems).

Red.

its a 5v sensor (it ranges from 0.5-4.88v)
 
I have the same problem with my grande punto (1.9 Multijet). My local fiat dealer could not say what the problem is and has no idea what the failure code P0238 means.
The problem with the lamp for engine control starts at 3,500 rpm.
I will try to get some more information from other fiat dealers.
Could anybody help?
Sorry for the bad english...
 
This is the same problem for me. If you boosted up more than 1.5 bar. The car go to limp mode. I am searching solution :(
 
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