lightning help, again

Adam B · 03-10-2008, 08:21 AM

I had my truck at a shop and they tuned it and was suppose to find out why it was losing fuel pressure. Well they never did so I went saturday and picked it up and got it back and dropped the fuel tank and one of the hoses had came off the top of one of the fuel pumps so I got that problem fixed. Now the thing will NOT idle without having to give it gas. While it was there some guy took a bunch of stuff off the left side of the engine by the blower, egr stuff i think, he said i didn't need it. Is there anyone around this area, that could possibly look at it and help me get it idling right. I don't know if it is in the tune or what.

04 Mach1 · 03-10-2008, 08:42 AM

If they tune with a fuel issue and now the fuel problem is fixed I'd say its in the tune.

Do you know fp before and after the fix???? You could try lowering fp to what it was before the fix but I would have it retune now that its fixed.

QWKSNKE · 03-10-2008, 04:44 PM

Was the tune done properly? (Maf curve changes) or was it tuned via fuel press adjustments

Adam B · 03-11-2008, 07:18 PM

Honestly, I have no idea how they did it. The truck smokes like a diesel when you get it on, I guess since it was losing fuel pressure they just loaded it up on fuel and now that the fuel pressure problem is fixed it is dumping too much fuel. I don't know if that would affect the idle though?

RedSuperRanger23 · 03-11-2008, 07:25 PM

The Lightnings sometimes have problems with the injectors. IIRC the pintle in the injector hangs open or stays open too long and floods it out. I have heard of some people deleting the EGR and compensating for it in the tune.

hevymtl · 03-13-2008, 05:54 PM

IAC

My L did that and I had to replace the IAC. It wouldnt idle without gas.

EZ SPEED · 03-16-2008, 09:49 AM

Quote:

Originally Posted by RedSuperRanger23

The Lightnings sometimes have problems with the injectors. IIRC the pintle in the injector hangs open or stays open too long and floods it out. I have heard of some people deleting the EGR and compensating for it in the tune.

I have been around Lightnings since 02 and have never heard that.

Quote:

Originally Posted by hevymtl

IAC

My L did that and I had to replace the IAC. It wouldnt idle without gas.

Sounds like a good place to start

RedSuperRanger23 · 03-16-2008, 01:03 PM

Ive seen it happen at least twice.

03-10-2008, 08:21 AM	#1
Adam B Member Join Date: Jul 2006 Posts: 47	lightning help, again I had my truck at a shop and they tuned it and was suppose to find out why it was losing fuel pressure. Well they never did so I went saturday and picked it up and got it back and dropped the fuel tank and one of the hoses had came off the top of one of the fuel pumps so I got that problem fixed. Now the thing will NOT idle without having to give it gas. While it was there some guy took a bunch of stuff off the left side of the engine by the blower, egr stuff i think, he said i didn't need it. Is there anyone around this area, that could possibly look at it and help me get it idling right. I don't know if it is in the tune or what.

03-10-2008, 08:42 AM	#2
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	If they tune with a fuel issue and now the fuel problem is fixed I'd say its in the tune. Do you know fp before and after the fix???? You could try lowering fp to what it was before the fix but I would have it retune now that its fixed. __________________ 89 gt 2.3 stroked holley head with n12n port high flow intake with great big fart can skunk 2 seat belts with kool glow water squirters and new light up shift knob basically everything from wal-mart art carr C4 10.53@127.3 w/ 1.53 60' 89 gt vert 347 eldebrock heads and intake AOD w/3000 stall unknown with 5spd went 12.7 on steet tires 04 Mach1 automatic flowmaster K+N drop in 13.9

03-10-2008, 04:44 PM	#3
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Was the tune done properly? (Maf curve changes) or was it tuned via fuel press adjustments __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

03-11-2008, 07:25 PM	#5
RedSuperRanger23 Gizmo Join Date: Jul 2006 Location: Gardendale, Al Posts: 272	The Lightnings sometimes have problems with the injectors. IIRC the pintle in the injector hangs open or stays open too long and floods it out. I have heard of some people deleting the EGR and compensating for it in the tune. __________________ 94 Mustang GT 89 Ranger XLT 96 F150 XLT 04 Crown Vic

03-16-2008, 01:03 PM	#8
RedSuperRanger23 Gizmo Join Date: Jul 2006 Location: Gardendale, Al Posts: 272	Ive seen it happen at least twice. __________________ 94 Mustang GT 89 Ranger XLT 96 F150 XLT 04 Crown Vic

03-11-2008, 07:18 PM	#4
Adam B Member Join Date: Jul 2006 Posts: 47	Honestly, I have no idea how they did it. The truck smokes like a diesel when you get it on, I guess since it was losing fuel pressure they just loaded it up on fuel and now that the fuel pressure problem is fixed it is dumping too much fuel. I don't know if that would affect the idle though?

03-13-2008, 05:54 PM	#6
hevymtl Beach Bum Join Date: Dec 2004 Location: In the sun! Posts: 2,846	IAC My L did that and I had to replace the IAC. It wouldnt idle without gas.