RE13REW

Hi guys !! i don't know you guys have this problem before or not... anyway, this is the problem i have right now.

I have a problem when i accelerate in between 2000rpm to 3000rpm in gears. it likes hesitating while i m increasing the speed, but once the turbo kickin is no problem.... But when the rpm drop down to 2000 and try to accelerate again, it happens again.... the problem is before the turbo kickin and in between 2000 to 3000rpm. thax guys..... i m like riding a horse while i m accelerating everytime.....

Is the fuel system or turbo electrical problem ?????

spurvo

To get a reasonable response, we need a bit more information. A hesitation in acceleration is a SUDDEN drop in seat back thrust feeling, which then recovers very quickly to continue thrusting you into the seat. This is typical for some FD's, often referred to as the 3K hesitation. It seems to be fuel related, most likely due to mismanagement from the ECU, maybe improper signaling from bad grounds.

A stumble is a prolonged loss of seat thrust that feels a lot like you are riding the brake pedal while giving it gas. This can be due to just about a bazillion problems.

To accurately determine what's going on, you need to first check if there any ECU codes that indicate an engine malfunction (search for reading codes), and second get a vacuum/pressure gauge hooked up to the intake manifold and read what vacuum/pressure levels you are at when the hesitation/stumble occurs. You can always buy a boost gauge for this, which will let you constantly know how you are doing.

Then we can help you more. This car is sooo complex, there is no simple, "Oh yeah, you have the XXX problem, and all you do is YYY"

good luck!

clayne

Does it only happen upon initial warm-up, or all the time?

RE13REW

I found Code 11 (Intake air thermosenser) and Code 16 ( EGR switch ). Vacuum is 20 in normal. It has 10 in vacuum while 2500rpm to 3000rpm. I just feel it is lack of power in 3k. When i step to 3000rpm the needle is just stop right there for a while, no matter i step more to let the motor suck more air it just stop and then about 2 seconds the engine shaking then the turbo kickin. In addition, while the needle stop at 3k, the car(motor) is shaking... it is weird to me.....