F250 Posted June 8, 2021 Report Share Posted June 8, 2021 Hi there , have 2003 hi zd30 keeps going into limp mode for 3rd-4th gear, has new snorkel & air box , manual boost control. 3” straight exhaust had been going great , now keeps going to limp Link to comment Share on other sites More sharing options...
Rumcajs Posted June 9, 2021 Report Share Posted June 9, 2021 (edited) Hi there, this is interesting because something similar is happening to another member. What other mods do you have? Asking because if ECU sees too much air coming in at particular engine load, RPM and TPS position it will go to limp in order to not pollute.... or keep the boost to about 10.5 psi until you reset with backing off the go pedal. There is no way around it unless drastic measures are taken like limiting boost, modding MAF signals or better going for ECU remap. Regards Edited June 9, 2021 by Rumcajs Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now