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Rpm Sudden Drop During Accelerate


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#1
hrsxbox

Posted 22 June 2013 - 02:22 AM

hrsxbox

    3rd Gear

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I'm having Waja 1.6A 2005

Lately when i accelerate, and during gear shift, the rpm will suddenly drop, and i feel like no fuel is being pumped in, but when i release and press the accelerator gently, the car will move but slow. Again when I try to accelerate the rpm will drop and my car started to jerk but it moves. If i would put on free gear and accelerate my rpm 7000 it will automatically drop to rpm2000 and no metter how i accelerate it will still drop.

If i would completely shut down and restart my engine, everything will turn back to normal but after about 20KM drive the problem come back again...

I have changed my throttle body but still same problem.. I try a new mechanic and he says its my Crank Sensor!!! I have yet to do anything as for now... I would appreciate all inputs out there...

My guess is the fuel pump problem. I have changed the fuel pump 2 years back.

SERIOUSLY NEED HELP..... I HAVE SPENT A LOT OF $$$ ON MY WAJA FOR REPAIR BUT STILL CANT SOLVE THE PROBLEM

#2
bigfatant

Posted 22 June 2013 - 07:39 AM

bigfatant

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Could also be the gear box computer.had a similar thing as well a couple of years back. Went to the shop in Kuchai lama to fix it at the end

#3
Gunnerzz

Posted 22 June 2013 - 07:33 PM

Gunnerzz

    Tokyo Drifter

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QUOTE (hrsxbox @ Jun 22 2013, 02:22 AM) <{POST_SNAPBACK}>
I'm having Waja 1.6A 2005

Lately when i accelerate, and during gear shift, the rpm will suddenly drop, and i feel like no fuel is being pumped in, but when i release and press the accelerator gently, the car will move but slow. Again when I try to accelerate the rpm will drop and my car started to jerk but it moves. If i would put on free gear and accelerate my rpm 7000 it will automatically drop to rpm2000 and no metter how i accelerate it will still drop.

If i would completely shut down and restart my engine, everything will turn back to normal but after about 20KM drive the problem come back again...

I have changed my throttle body but still same problem.. I try a new mechanic and he says its my Crank Sensor!!! I have yet to do anything as for now... I would appreciate all inputs out there...

My guess is the fuel pump problem. I have changed the fuel pump 2 years back.

SERIOUSLY NEED HELP..... I HAVE SPENT A LOT OF $$$ ON MY WAJA FOR REPAIR BUT STILL CANT SOLVE THE PROBLEM

Looks like a fuek pump or crank sensor problem to me,
U might have change the pump 2 yrs ago but if u do it outside then there is no way of knowing if the shop use ori part or replacement part rite?

Anyway,i suggest u go find a reputable mech or send it back to proton instead of guessing.
With the right people, u can solve the problem and save money.
If u are in melaka i csn point u to a workshop.

#4
mych

Posted 04 February 2014 - 03:16 PM

mych

    White Lightning

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suspect the pump..
Mych