When i rev up to 3000 rpm the battery light will go off?
Could be bad alternator.
It is an electrical relay problem, that is part of the EFI system, I had an Audi of about the same age with the same problem many years ago. The relay was under the dash to the left of the steering wheel. Sorry, can't be more precise, but the dealer at that time had the relay in stock and one mechanic at the dealer gave me enough info to find the relay and replace it, and that solved the problem
SOURCE: engine will not rev above 3000 rpm
Inadequate fuel pressure, change the fuel filter first, make sure the car sits for at least two hours before replacing the fuel filter because these fuel lines are under high pressure during the time of operation. The pressure usually decreases over time in the lines but wear safety glasses just the same, I would recomend depressurizing the fuel system first, buy a Haynes repair manual for detailed procedure to be safe. If problem persists go to Auto Zone and ask them to check for trouble codes these codes if present may instuct you in detail to replace the MAF sensor or give you a code that must be looked up to find the problem.
SOURCE: p1613 fault code & engine will not rev over
Crank sensor or engine speed sensor is faulty.
Fault:
Irregular power loss on accelerating
The speed of the engine is limited till 2500rpm
Frequent loss of crankshaft position sensor signal
Cause:
It is caused due to leaking from thermostat housing into crankshaft position sensor harness multi-plug
Remedy:
Check and clean the crankshaft position sensor harness multi-plug contacts. Rectify the engine coolant leak from the thermostat housing if found. Take a note of the engine coolant level and monitor it for changes, showing a leak is indeed occurring.
SOURCE: Check engine light on. Will not rev up over 2500
Hi, there are a lot of things that could cause this behavior, so it would help us to diagnose your problem if you could get a scan of the OBD2 connector and send us the trouble code. If you live in the US you can usually get a free scan at your local parts chain.
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