ghostmax

iTrader: (4)

92VE-5, 165k miles

Car was hesitating on acceleration before. Recently replaced fuel filter, CTS, 2 front coils, plugs, 02 sensor, rear valve cover gasket, fuel pump relay, resistor KS bypass with premium fuel, and cleaned the IAAC/TB/EGR/popcharger filter. Car started to run better for a week or so without hesitation.

Today the car ran fine, parked it for an hour. Then when I started it, it would sputter and die, kinda like it does when the fuel pump fuse is removed (I replaced the fuse with a good one to be sure). Long story short, a mechanic came disconnected the MAFS, fiddled with the TB cable--no improvement. Evenutally he sprayed ether through the air filter, and the car didn't sputter anymore. So I had it towed to the shop (after hours), and he'll look at it tomorrow. Diagnostics is $72! Said he'll check fuel pressure, etc and then quote me for a fix. In the past, I did have to clean the fuel pump harness under the rear seat because it was melting/corroded, but the symptom then was no start at all.

Any ideas? I'm thinking fuel pump, clogged injectors, bad gas... I didn't get the chance to check the ECU for codes before he towed it. Thanks in advance!

x91max

its probably the iac i believe its called. it comes off ur intake manifold.

Greeny

iTrader: (43)

If the fuel pump harness is melted,you need to replace it..

internetautomar

iTrader: (30)

check the voltage level at the pump.

mikekantor

iTrader: (5)

I think its simpler. Did you tighten the plenum properly when you put it back on?

Last time I replaced a rear injector, I didn’t tighten the plenum hex bolts all the way and it was sputtering just like that because of the vacuum leak.

ghostmax

iTrader: (4)

I tightened them up, but they could've loosened up over a week or so when I replaced them.

I'm about to head over to the shop and see what they've found.

Thanks guys.

ghostmax

iTrader: (4)

Well I called back, and they said the fuel pump was not working but they are going to keep looking. I told them about the harness being corroded, and I'll guess they'll take a look. I hate having my car at the shop because there's no telling what they're doing. I don't have my FSM with me, what is the resistance at the pump supposed to be?

internetautomar

iTrader: (30)

ya shoulda asked greeny to stop by, he's in the same state

Greeny

iTrader: (43)

It's like a 5 hr drive to memphis from here..

internetautomar

iTrader: (30)

so that's just a 2.5hr trip in the ve-5

xx-Marshall-xx

iTrader: (15)

im curious to what plugs your using...

Greeny

iTrader: (43)

I'm curious as to why plugs would have anything to do with his car not running?

Unless all six decided to foul out at the same time..

My $ is on the harness plug..

CapedCadaver

iTrader: (8)

3¼ hours in my GXE. Maybe 3 flat once i swap for a 5speed. oh, wait, I'm another 300 miles east of that...

ghostmax

iTrader: (4)

Bingo! Turned out to be the melted plug which I should have replaced last time. So he charged me 72 diagnosis + 72 hour labor + 10 supply. I even told him to check the plug.....At least it wasn't worse, but this teaches me to do things the first time.

Thanks guys!

Btw, I run NGK coppers

ghostmax

iTrader: (4)

So it's been one week since a section of my fuel pump harness was replaced. I have not had any hesitation on load. I think this is definitely one thing that should be checked if you are experiencing that common symptom.

5spdMaximaSE

I have similar problems, do you mean the harness to the pump under the seat?? and what do I check for? corosion or loose wires..both?

ghostmax

iTrader: (4)

The harness leads to a plug to the fuel pump. The plug was melted on mine.