Bit of a strange one here, and wonder if anyone can help?

Ive installed a link recently and have a strange RPM Spike.

The car run perfectly fine in boost and general driving

BUT

If I am in Neutral and raise the RPM to about 1700, the car sundenly revs up and down between 1700 and 2300rpm even if I hold the throttle in the same postion?

Has anyone had the same problem?

I have set the Idle and TPS as per the Link Instructions

And tried to reset it again and again, and also swapped the IAC and the TPS, but still have the same problem?


Can anyone help please.

Thank

 

Thanks in advance for your responses, as it is really getting on my ****!

 

I would suggest not driving your again until you post up in the Meet and Greet section...

Then after that I would suggest not reving your motor and holding it at 1700 RPM

Then after that you can tell us more about your setup.

Intercooler ?

Injector sizes ?

Staged Non-Staged injection?

Cold side hotside?

Location of the throttle body?

did you set idle using the diagnostic box?

ect. ect. ect.

and buy a turbo

 

Meet & Greet posted



Idle was set as per FM Link instructions, and the TB is on the Charger, Hotside kit,


and to answer questions spec of car is:

G-Ltd
1.8

MP62 Standard Boost
TDR Intercooler
FM Link ECU
550CC RC Injectors
Mazdaspeed 4-2-1
De-Cat
Mazdaspeed Exhaust
Green Cotton Air Filter


TEIN Flex EDFC
Tarox 6 Pot Brake
FM ARB's
Rota RB 15x8
Federal Track Tyres

Carbon RS Seats
Mazdaspeed Roll Bar

+

Lots more!!!


So if anyone could help me I would appreciate it.

Thanks