Thread: siberian guy need your help

Dear all, please help! I have following trouble with my Nissan x-trail (2001) SR20VET, gasoline turbo
Car can not accelerate more the 50 km/h or 2000 rpm, sometimes not all the time, it happened sometimes ones per day, sometimes each hour, when I push accelerator to floor (kick down) nothing happens
When I come to technical guys – they can not see any errors on the scanner, where can be the problem?

do you have an aftermarket air filter on?? sounds crazy but i just had this problem with a car.

sounds like the car is going into limp mode. they need to check the maf.

No Codes huh? usually when something like that happens its one of three things, Maf took a dump or is about to take a dump, electronic pedal sensor is bad or misreading or the electronic throttle body is bad or mis reading with the pedal. If the pedal to throttle position get off by any amount the car will automatically go into limp mode.

But usually with the pedal or throttle body inaccurate reading you will have a check engine light. The maf on the other hand, not always so this leans me towards the maf. maybe check your connection at the maf.

ok will check soon & reply, question - can be oxygen sensor (before catalyzer) a problem as well?

Defective o2 sensor will cause the motor to run crappy, but not as you're describing. You'll get a check engine light, a code will pop up, and the vehicle will get HORRIBLE gas mileage.

Bad o2 will not affect wide open throttle. Look into the maf, tps, fuel filter possibly..

I checked russian forums - a lot of x-trail GT owners in russia has this problem - they replaced already MAF, o2 sensor, boost sensor -result is the same. they think the problem is in throttle (turbine make flow more then required - ) or in detonation sensor, they founf also during this problem ignition angle is -15/-20

I have also seen a defective coil pack cause this problem. My buddy just had this happen to him. It also did not trip the ses light, but when hooked up to a consult II you could see a knock sensor and misfire event.

I'm sorry for my English, please explain me what do you mean - I have a problem with detonation sensor ans some problem with ignition? consult II it's official nissan's dealers scanner - perhaps I'll not found it here..
wastegasanalyser also show us poor mixture - means not enough fuel - because of this no traction and malfunction of engine