11-12mpg / hard start

White93z34 · October 03, 2011, 04:13:12 AM

Why?

I have no idea why this thing does so bad on fuel. engine/turbo have ~112,000 on them

When COLD it is a massive bitch to get started, takes 5 trys or so. then will run perfect, and start just fine till its cold again.

Topgun160
Cone filter
160* t stat
ford yellow top injectors

scantool says everything is fine, CTS reads what it should, car seems to perform fine otherwise.

any ideas/things I should check?

jimmy · October 03, 2011, 01:11:07 PM

When it gets to the point where it starts, does it start but sounds like it starving for fuel?

White93z34 · October 03, 2011, 02:12:41 PM

nope it will just jump to life and idle fine. should also mention that it has a brand new fuel pump/filter in it as of last year as well. pretty new denso o2 sensor too.

White93z34 · December 18, 2011, 09:57:25 AM

figure i'd post an update... replaced the O2, that took care of the hard starts and brought my fuel economy from 10-11mpg avg to around 15-16average. Car is put away for the winter now... but is that normal for a TG160 TGP? I feel it should do better then that quite frankly.

Shifter23 · December 18, 2011, 10:24:05 AM

I would think it would be around 18 myself.

TGP Nick · December 18, 2011, 02:34:48 PM

I didn't have a TopGun in mine, but I was averaging a pretty consistent 22 mpg with mostly city driving in my TGP when it was stock with a Jeff M x-over and C302 yellowtops.

PhatMpk · January 28, 2012, 05:31:13 PM

Sounds like I might be having the same issue ac delco 02 sensor thanks for the info

Fred931 · January 28, 2012, 06:23:43 PM

This was my issue as well, but I also had a high idle, but the IAC was broken at the same time.

I'm getting 16MPG with pretty much exactly White's setup, minus new fuel pump. At the same time, I usually drive the car three miles a day to school and back, so that's respectable.