2003-04 Mach 1 Registry Owners Club - View Single Post - Frequently get hesitation for half a second

sutyak · 03-01-2017, 10:45 AM

I used to have a similar issue with my turbo Focus when water got into the intake. It would blow onto the MAF and momentarily stall, but that was only in boost. I eventually moved the air filter.
Similar hesitations have been lean spots in part throttle and fixed through tweaks of the MTF table in the tune. Issues with the tune are usually consistently reproduce-able and not random. I've found random issues point to physical faults, meaning not in the tune.

03-01-2017, 10:45 AM	#16
sutyak it's soo-tack Join Date: Nov 2002 Location: Fairmont, WV Posts: 2,082	Re: Frequently get hesitation for half a second I used to have a similar issue with my turbo Focus when water got into the intake. It would blow onto the MAF and momentarily stall, but that was only in boost. I eventually moved the air filter. Similar hesitations have been lean spots in part throttle and fixed through tweaks of the MTF table in the tune. Issues with the tune are usually consistently reproduce-able and not random. I've found random issues point to physical faults, meaning not in the tune. __________________ mark 2004 DSG Mach 1. Built motor. Turbo. 667whp 2006 Sonic Blue Focus. Built motor. Turbo. 12.4 @ 115mph (sold) 2003 DSG Mach 1. 12.65 @ 106 (sold) Last edited by sutyak; 03-01-2017 at 11:06 AM.