Topic: have spark, no fuel. FPR? 12v VR6 content (Read 800 times)

mikeminnillo · « **on:** September 30, 2009, 11:48:56 AM »

i went to start my car, and it turns over, but no start. car is a MKIV GTI 12V. ive had a recurring CEL that alternates between too lean and too rich. car definitely has electrical, but for some reason isnt getting fuel. im thinking it could be a bad fuel pressure regulator or a bad fuel pump.

ive got a friend who seems to think it could be the alternator, but with it cranking over, i dont think electrical is the problem. i havent had the alternator checked, but he could be right, and the CEL may be unrelated to the starting issue.

any ideas?

Giggidy · « **Reply #1 on:** September 30, 2009, 12:10:13 PM »

I don't see how the alt. would be a problem at the moment.... if it's cranking it has juice, which means it would start and run until the battey dies. Have you checked the coil pack?

Luckyy · « **Reply #2 on:** September 30, 2009, 12:14:08 PM »

Hmm. After going through like four weeks of hell with the same problem on my 8v, I feel your pain! Can you hear the fuel pump prime when it should? (I know on my mark 4 it primes when I open the door sometimes, or when I turn the key)

brandonb85 · « **Reply #3 on:** September 30, 2009, 01:01:32 PM »

When was the last time you changed the fuel filter? Check the lines to make sure you didnt break a clip on the fuel filter

yokust · « **Reply #4 on:** September 30, 2009, 01:44:12 PM »

HAHAHAHAHAHAHA HA

VR6's are worthless peices of shit

Too bad Cash 4 Clunkers is over

Giggidy · « **Reply #5 on:** September 30, 2009, 02:42:28 PM »

Quote from: yokust on September 30, 2009, 01:44:12 PM

HAHAHAHAHAHAHAHA

VR6's are worthless peices of shit

Too bad Cash 4 Clunkers is over

What planet are you living in? VR's are the most dependable, most bullitpoof motor to ever be in a VAG in the past 15years.

Luckyy · « **Reply #6 on:** September 30, 2009, 02:57:54 PM »

Preach it

yokust · « **Reply #7 on:** September 30, 2009, 03:00:47 PM »

Quote from: Giggidy on September 30, 2009, 02:42:28 PM

What planet are you living in? VR's are the most dependable, most bullitpoof motor to ever be in a VAG in the past 15years.

I live in the real world and work on those piles every day

VR6

, only thing its good for is a drag car motor,

Luckyy · « **Reply #8 on:** September 30, 2009, 03:19:37 PM »

Does everyone drive a twin turbo V8 in this real world?

yokust · « **Reply #9 on:** September 30, 2009, 04:18:14 PM »

Quote from: Luckyy on September 30, 2009, 03:19:37 PM

Does everyone drive a twin turbo V8 in this real world?

They should if they were a REAL man

yokust · « **Reply #10 on:** September 30, 2009, 05:17:33 PM »

But back on the subject

1st check to see if there is actually any fuel coming out of the feed line before the rail when you crank it. MK4's are known for killing fuel pumps, and fuel pump relays. Its the black hard line by the pass shock tower. It has a quick disconnect on it. Pull it off and give it a key on and crank real quick, if fuel shoots up it has fuel.

But also based on your codes you have a bad MAF sensor, which VR6's in their shittyness will sometimes not start or start and die.

Luckyy · « **Reply #11 on:** September 30, 2009, 05:38:45 PM »

Yeah, definitely pick up some crc maf cleaner and see if that fixes you up first... quite possibly the easiest potential fix.

mikeminnillo · « **Reply #12 on:** September 30, 2009, 06:37:08 PM »

now isnt there the potential to unplug the MAF and still be able to start the car? if im able to do that, i guess i could narrow it down there.

ok, heres my plan of action for tomorrow:

step 1: check MAF sensor
step 2: check fuel pump relay
step 3: check fuel filter
step 4: check fuel pump itself

scurvy_bandit · « **Reply #13 on:** September 30, 2009, 09:51:37 PM »

Quote from: Giggidy on September 30, 2009, 02:42:28 PM

Quote from: yokust on September 30, 2009, 01:44:12 PM
HAHAHAHAHAHAHAHA

VR6's are worthless peices of shit

Too bad Cash 4 Clunkers is over

What planet are you living in? 8V ABA's are the most dependable, most bullitpoof motor to ever be in a VAG in the past 15years.

I agree 1000000000000%

Luckyy · « **Reply #14 on:** October 01, 2009, 12:56:40 AM »

Quote

I agree 1000000000000%

Trickery I say

.:Reaper · « **Reply #15 on:** October 01, 2009, 03:21:29 AM »

Quote from: Giggidy on September 30, 2009, 02:42:28 PM

Quote from: yokust on September 30, 2009, 01:44:12 PM
HAHAHAHAHAHAHAHA

VR6's are worthless peices of shit

Too bad Cash 4 Clunkers is over

What planet are you living in? VR's are the most dependable, most bullitpoof motor to ever be in a VAG in the past 15years.

X2

scurvy_bandit · « **Reply #16 on:** October 01, 2009, 05:33:04 AM »

when was the last problem you heard out of a MK3 8v? Just do the swap already man ::candadian:: haha

Let us know how the checks come out.

yokust · « **Reply #17 on:** October 01, 2009, 07:12:53 AM »

Quote from: mikeminnillo on September 30, 2009, 06:37:08 PM

now isnt there the potential to unplug the MAF and still be able to start the car? if im able to do that, i guess i could narrow it down there.

ok, heres my plan of action for tomorrow:

step 1: check MAF sensor
step 2: check fuel pump relay
step 3: check fuel filter
step 4: check fuel pump itself

Well your MAF is bad on a VR if its throwing rich and lean codes NO questions asked. And you will not be able to check the MAF unless the vehicle runs so that you can watch the g/s readings w/vagcom

Just make sure you have fuel spraying out of the line for reals that is 1st

brandonb85 · « **Reply #18 on:** October 01, 2009, 12:48:19 PM »

Call me after 7 ... I will help you

VR FTMFW

mikeminnillo · « **Reply #19 on:** October 01, 2009, 01:58:32 PM »

ok, i confirmed that the fuel pump is priming. i unplugged the maf and tried to start, and no start, so im ruling out the possibility of a bad maf. going now to check for the fuel coming out of the fuel line. if no flow, im going to do the fuel filter.

mikeminnillo · « **Reply #20 on:** October 01, 2009, 02:29:19 PM »

ok, ive confirmed that there are no issues with fuel flow. im at a loss. maybe a bad MAF or alternator?

yokust · « **Reply #21 on:** October 01, 2009, 02:47:15 PM »

And you are positive that there is spark? A strong and steady one the whole time you are cranking?

Check codes and see if you have a engine speed sensor fault, or a cam sensor fault.

mikeminnillo · « **Reply #22 on:** October 01, 2009, 04:24:07 PM »

checked some electrical stuff. turn out no spark after all.has power going into the coil pack, but no power coming out. bad coil pack?

Southcross · « **Reply #23 on:** October 01, 2009, 04:49:01 PM »

VAGCOM to see if your getting a Crank Position Sensor reading?

usually, the fuel pump relay turns off if there is no spark... designed to prevent a fire if the engine stops in an accident.

mikeminnillo · « **Reply #24 on:** October 01, 2009, 05:03:19 PM »

I'll be running a vag com is a bit. I'll see what kind of codes i end up with.

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