Injection problems
Injection: It refers to the fuel injection, which is the system through which the fuel is rationalized and then enters into the engine.
More specific problems:
Related problems:
See owner's manual
Top problems
Starting 
Solved
Nissan Sentra 2000 180000 miles
Good morning eveyrone. My car is having a starting failure; it sometimes starts powerless, and I need to press the accelerator for it to finally start, when it has an electrical ignition. I've already cleaned injectors, checked fuel pressure, spark plugs and changed the distributor but it keeps doing the same thing. It even sometimes does not want to start when warm. Please someone give me a hand.
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Best answer (according to Isadora)
ME
You should check that the crankshaft and camshaft's sensors are working properly and that the harnesses and wiring are not damaged.
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Thank you for your comment. I've already solved my problem; two pistons were twisted, the cylinder head gasket was broken and there was a pressure leakage.
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CommentRevolutions drop and stalls
Nissan Sentra 2002 175000 miles
Hi everyone. When the car is stopped or when driving at low speed, around 10-20 mph, revolutions drop and the engine stalls. This does also happen when I change speed, for example from 3rd to 4th gear. In that little time that I stop accelerating, revolutions drop so much that the car stalls. Oil and spark plugs have been changed, injectors cleaned, filters cleaned and even the car tuned but the failure is still there. Please help me!
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Have you tried cleaning both the IAC valve and the MAF?
That solved my problem, buddy. Thank you so much!
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