Hey guys im in major need of help got a 90 mk4 xr3i running efi the problem is ive got a running problem that i just cantr figure out
If i drive sensibly get major hesitation kangarooing and is also running mega rich done the usual service plugs filters etc but yet still no joy in major need of help

 

Assume you also did fuel filter ?, have you used BOSCH plugs by any chance ?
tabetha

 

yes changed fuel filter aswell lol and no running ngk plugs as always had best results with them

 

Hey guys disconnected each injector in turn then the tps now seems to run without lurching/kangarooing so happy happy thinking was sticky injector etc just gotto get the mixture setup then im sorted

 

i had this problem, or at least similar. two injectors were knackered and two were borderline.

although im led to believe they run a tad lean anyway the EFI's so richening slightly can smooth them out.

 

i had fuel pressure reg tweaked slightly too to help injectors out.

 

hey guys sorted the kangarooing but still running mega rich the kangarooing was throttle position sensor