Technical JTD80 - no power over 3000rpm - suspect cat

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Technical JTD80 - no power over 3000rpm - suspect cat

YoniNijs

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Ok, my friend has a fiat stilo 5doors, 2003. 1.9JTD 80pk, chipped to 106pk.
The transmission has been replaced by one of a fiat bravo(by the dealer).

Problem is, when driving in 5th gear, when he throttles up to above 3700RPM, the engine fault warning pops up, and the car throttles down to about 3000RPM, and doesn't accelerate at all anymore. Changing gears doesn't help, it stays at 3000RPM. The only thing that does help is turning the car completely off, and then start it again.

The dealer says it is the katalist, bit expensive, so want to be sure it really is that. Anyone perhaps know what the problem could be?
 
Not too familiar with the 80BHP engine but can't see how different gearbox ratios can have any bearing on your problem.

You need to get it back to standard as 1st step (unchip it) and then try the basics. Have you checked with diagnostics (see the top threads)?
 
I'll make sure the chip gets uninstalled.

About the Diagnostics, problem is, when arrived at the garage the warning was gone because of a car restart, and nothing shows up on the laptop...
 
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