DBP cuts out when accelerating from a stop right hand turns only

[8UWITH6]

As the title says my blue is acting funny. Right hand turns only, from a stop. Fuel pressure cuts out from 40psi to 9psi but comes right back. Does not stall. Just bucks and noses over. Fuel tank is not empty. I haven't had time to check anything yet just wanted to get a post up for discussion of possible causes. It has done it in the past verrrry intermittently. I was able to replicate it multiple times yesterday during multiple drive cycles.

[Zack]

Just pull the pump and you'll probably find your answer.
You can monitor fuel pump voltage as well.

[8UWITH6]

You really think so? Wtf does right hand turns have to do with it?

[ChiTownMaraud3r]

Too much G force yo. Sounds totaled. I'll give you a hand by buying it off you though.

[8UWITH6]

Funny. That is exactly what turbov6bryan said yesterday.

[Turbov6Bryan]

Funny. That is exactly what turbov6bryan said yesterday.

Lol. I said I'd trade u my DTR that has 3 times the miles, that means it's reliable. LOL

Did it do it this morning? That pump is 2 years old......

[8UWITH6]

Its in the garage at home. So dunno. Because rain.

[RubberCtyRauder]

dont turn right..make it a nascar runner Neiljoebillybob

[J-MAN]

dont turn right..make it a nascar runner Neiljoebillybob

Still no like button? :(

[MOTOWN]

Your fuel pump is going to the light!

[8UWITH6]

Great. I can accept that. But why turning right?!?

[Spectragod]

Only UPS trucks make right turns, be different....turn left.

It is possible that there are multiple problems, have you verified you have no chafed wires on the back of the motor (not that I am doubting Zack), just wanting to cover all bases............

[8UWITH6]

Have not verified anything yet because work. I will check some basics on the way to work tomorrow

[WhatsUpDOHC]

You really think so? Wtf does right hand turns have to do with it?

Cut back on the donuts.

[Fastbob]

Fuel moving to the side in the tank exposing a small hole in the line somewhere between the top of the tank and the pump causing it to suck air?

[MMBLUE]

It's junk. You should get rid of it. PM sent lol.

Filter ???
inertia switch?

[8UWITH6]

No possible way the feed hose is leaking. Used 25 dollar per foot fuel injection hose.

[8UWITH6]

It's junk. You should get rid of it. PM sent lol.

Filter ???
inertia switch?

PM not received😉

[8UWITH6]

I enjoy the challenge. Nobody can relate to this issue so far so game on. This shall be fun. I think I will change spark plugs first and hope for the best.

[jwibbity]

I enjoy the challenge. Nobody can relate to this issue so far so game on. This shall be fun. I think I will change spark plugs first and hope for the best.

Don't forget to clean your MAF and IAC, it's the universal cure-all!

[lji372]

I enjoy the challenge. Nobody can relate to this issue so far so game on. This shall be fun. I think I will change spark plugs first and hope for the best.

What kind of oil are you running?......

[8UWITH6]

15w40 Rotella ;)

[Turbov6Bryan]

Don't forget to ask what gap you need on those plugs, and might as well ask if 4.10 gears really help out much

[Mebot]

Might as well trade for a DTR. Life just goes downhill from here

[Curless]

Chaffed wires would be my bet... unless you have not upgraded your fuel pump...

[8UWITH6]

Aeromotive in tank pump for the eaton swap. It did not act up on the way to work this morning. You know this issue has been happening since the left rear quarter was replaced 2 years ago. I'm going to inspect the inertia switch wiring.

[Ourobos]

Did you delete the little square deal on the fuel pump sender inline with the pump when you upgraded it? I did, like I always did on my Cobras, and my tuner said it causes it not to hold pressure as well. Mine does the same as yours, especially when it's super hot outside.

[Ourobos]

This piece..
Also makes it have to crank a bit extra to start.. It's done on the cobras due to the manual transmissions.. Which I didn't think about when I deleted mine on the marauder.

[8UWITH6]

It is straight fuel line hose with all that BS deleted.

[Raleigh Marauder]

I enjoy the challenge. Nobody can relate to this issue so far so game on. This shall be fun. I think I will change spark plugs first and hope for the best.

Mine has hesitated on occasion for a couple of years now. It happens on a left-hand turn for me, and from a stop. And the funny thing, it happens at the same location. It's a turn I make every day. It doesn't happen every time, or even most of the time, but it's still peculiar that it happens at the same spot. I'm all stock except for a tune, cold-air and 4.10s.

[Spectragod]

I enjoy the challenge. Nobody can relate to this issue so far so game on.



Have you been abducted by aliens lately? My dog told me to ask you that......


Sent from my iPhone while doing a big ole' smokey burnout in my wife's Prius.

[Ourobos]

It is straight fuel line hose with all that BS deleted.
Does it have to crank a little longer than an N/A stock one would? IF so, could be your problem as well. Especially in this hot weather.

[Turbov6Bryan]

Could it be the float in your carburetor not filling the bowl?

Turning the corner would make the main jets suck air and cause a stumble...;)

[8UWITH6]

Does it have to crank a little longer than an N/A stock one would? IF so, could be your problem as well. Especially in this hot weather.

I occasionally get an extended crank on a hot restart.

And no alien abductions.

[MMBLUE]

I'm going to inspect the inertia switch wiring.


:2thumbs::2thumbs::2thumbs:

[vegasmarauder]

On wife's 300A it started doing that very thing on right turns. Fuel pressure was dropping. I changed the pump, still problem. Peeled back the left side trunk carpet and tapped on the fuel pump driver module. Guess what? Intermittent fuel pressure drop. Changed FPDM and problem went away. Fuel pump was probably fine.

[Turbov6Bryan]

On wife's 300A it started doing that very thing on right turns. Fuel pressure was dropping. I changed the pump, still problem. Peeled back the left side trunk carpet and tapped on the fuel pump driver module. Guess what? Intermittent fuel pressure drop. Changed FPDM and problem went away. Fuel pump was probably fine.

FPDM was my first guess

Sounds like a easy fix, and you don't have to get dirty!!

[8UWITH6]

Did not act up at all today.

[TooManyFords]

Have you checked the FPDM yet?

[8UWITH6]

Not yet. Off Friday for diagnosis.

[Zack]

The only diagnosis is changing it.
I have one if you need it.
The AEM pumps don't burn up FPDM's

[guspech750]

And no alien abductions.



I've experience alien penetrations. No biggie.


Sent from The White House on taxpayers dimes.

[Spectragod]

I've experience alien penetrations. No biggie.


Sent from The White House on taxpayers dimes.

Uhhhmmmm, you remember that night??

[lji372]

I've experience alien penetrations. No biggie.


Sent from The White House on taxpayers dimes.

so your saying aliens are small? :confused:

[8UWITH6]

The only diagnosis is changing it.
I have one if you need it.
The AEM pumps don't burn up FPDM's

Diagnosis at my house is inspecting wires. Drink a beer. Talk about what to do next. Drink a beer. Call Jaydees to bring over his spare FPDM. Drink beer waiting for him. When he shows up with the part look at it and say hold my beer while I get in the trunk. Replace part. Cannot test drive because............ Diagnosis.

[RubberCtyRauder]

Diagnosis at my house is inspecting wires. Drink a beer. Talk about what to do next. Drink a beer. Call Jaydees to bring over his spare FPDM. Drink beer waiting for him. When he shows up with the part look at it and say hold my beer while I get in the trunk. Replace part. Cannot test drive because............ Diagnosis.


Sounds like a guy I know who takes 2 days and a 12 pack of Pabst to change his oil on his semi truck..day 1, drain oil and drink beer, day two install filter and replace oil

[Fastbob]

If I were to drink 3 or 4 beers while working on it, at beer number 4 I would have forgotten what the problem was.

[Spectragod]

Diagnosis at my house is inspecting wires. Drink a beer. Talk about what to do next. Drink a beer. Call Jaydees to bring over his spare FPDM. Drink beer waiting for him. When he shows up with the part look at it and say hold my beer while I get in the trunk. Replace part. Cannot test drive because............ Diagnosis.



I can come by to help diagnose the problem, probably wouldn't get much done with all the drinking and ogling over that dpb mm.


Sent from my iPhone while doing a big ole' smokey burnout in my wife's Prius.

[Ourobos]

That's hilarious

[CoreyM75]

Diagnosis at my house is inspecting wires. Drink a beer. Talk about what to do next. Drink a beer. Call Jaydees to bring over his spare FPDM. Drink beer waiting for him. When he shows up with the part look at it and say hold my beer while I get in the trunk. Replace part. Cannot test drive because............ Diagnosis.

Too bad you don't have a clean one owner southern DBP to use as a example of how it should work. If only........

[8UWITH6]

LOL. Fall down Friday's. JK.

[8UWITH6]

I can come by to help diagnose the problem, probably wouldn't get much done with all the drinking and ogling over that dpb mm.


Sent from my iPhone while doing a big ole' smokey burnout in my wife's Prius.

Truth. You can watch me wash it again.

[Spectragod]

Truth. You can watch me wash it again.



You looked so cute the way you did it.......lol


Sent from my iPhone while doing a big ole' smokey burnout in my wife's Prius.

[8UWITH6]

If I were to drink 3 or 4 beers while working on it, at beer number 4 I would have forgotten what the problem was.

Lightweight

[Turbov6Bryan]

If Johnny Boy is busy and you still need a FPDM lmk
I've got a spare one too

[WhatsUpDOHC]

LOL. Wet your whistle Wednesday's.

Fixed.

In 4 the Champagne of Beers.

[Turbov6Bryan]

Fixed.

In 4 the Champagne of Beers.

:) that's the best beer out there :) btw that's my hand holding that beer!

Six pack Sunday LOL

[Ourobos]

I was having this same issue and my car would crank more than I liked before it would start.. Replaced my FPDM today.. Fires right up.. I bet the issue is gone as well. We shall see.

[8UWITH6]

Thanks for the info. My car has been fine, zero given. Keep driving. Until it happens again ;)

[justbob]

Thanks for the info. My car has been fine, zero given. Keep driving. Until it happens again ;)



You remind me of someone? Oh yeah, ME.. [emoji1303]


Sent from my iThrone using Tapatalk

[Ourobos]

^ I lied.. Mine just died on me twice.. Same scenario.. Thinking about ditching this NEW GT Supercar pump for something else..

[justbob]

So far I haven't heard one bad story on the AEM 320's


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[8UWITH6]

Bob, will eventually move to that pump have heard lots of issues with Aeromotive lately. :( And they are literally 3 blocks from my house.

[justbob]

Bob, will eventually move to that pump have heard lots of issues with Aeromotive lately. :( And they are literally 3 blocks from my house.



Yeah I've heard about the issues as well. I run two of the aeromotives, ones three and half years old and whisper quiet. When I went return fuel a year ago last March I added a second and it sounded (and still does) like it has sand in it.. So far both have performed flawless.


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[Ourobos]

I wanted to update on mine.. Before putting a new pump in, I decided to check my idle speeds with my X4.. They were pretty low. I bought the idle from 550 or so to 750.. No issues at all now.

[8UWITH6]

No issues with mine since this post. No idle issues. Zero given.