89 S5 Vert cuts out on left turns!?

FerociousP · 05-26-2015, 04:42 PM

with it out... might as well go ahead and change the fuel sock too... I had a "left turn starve" under 1/4 tank which was corrected with a new sock.

ROT8TOR · 06-11-2015, 04:02 PM

Ok... Sorry its taken so long to get back to you, but I just now had time to f#@k with this.

The tank looked good and the "bowl" in the tank was clean and practically debris free. The sock looked good and also had very little debris.

What do I do or test next?

The pump is out and I'll be awaiting your reply.

RETed · 06-11-2015, 09:07 PM

Do you have something that can show you fuel pressure?

If so, there is a "dead end" pressure spec for the fuel pump (at full voltage).
That's the easy one to check...

Next, you'd need to be able to watch fuel pressure at the fuel rail, which will usually call for a "T".
Run the gauge to the windshield and tape it there so that you can watch it while you're driving temporarily.

If it is fuel (pressure), it's either going to be a drop if fuel pressure due to a mechanical failure, or an electrical one...

-Ted

05-26-2015, 04:42 PM	#1
FerociousP I-had-a-bad-experience... Join Date: Feb 2008 Location: M'boro Posts: 1,046 Rep Power: 19	with it out... might as well go ahead and change the fuel sock too... I had a "left turn starve" under 1/4 tank which was corrected with a new sock. __________________ '15 Juke Nismo '06 MX-5 GT SOLD '04 S Silver RX-8 GT Track Day Use SOLD '90 Black TII vert w/ Sprint RE stock port/turbo DD dyno (242.6whp@5500rpm @12psi 8psi@redline) and (250ftlbtq@4800rpm @13psi) SOLD '89 GTUs 6p TII SOLD, '87 sport SOLD, '79 SA stock SOLD '91 B2600i 4x4 w/ Rx-8 LSD SOLD

06-11-2015, 04:02 PM	#2
ROT8TOR The Newbie Join Date: Jul 2011 Location: Charlotte, North Cackalacky Posts: 18 Rep Power: 0	Ok... Sorry its taken so long to get back to you, but I just now had time to f#@k with this. The tank looked good and the "bowl" in the tank was clean and practically debris free. The sock looked good and also had very little debris. What do I do or test next? The pump is out and I'll be awaiting your reply.