Car is fixed

[IDRVSLO]

Ok so I have been at war with my Ty and am still at a loss. The only code I am throwing now is 44. I took it to a mechanics shop and they said my O2 is good to go. The guy there suggests that I am over boosting and causing the code to trigger. Currently my car lacks the factory boost solenoid and is set up straight from the turbo to the waste gate. If I am not mistaken that limits my boost to somewhere around eight psi, correct me if I am wrong. Also my factory gauge has confirmed this....I know it tends to be off though. I have an AEM Tru Bosst and AEM Uego W/B O2 ready to be installed soon. The car just runs like ass though its like it wants to die all the time. Not at idle but when actually under load, doesnt accelerate well and at partial throttle is sounds like it is sputtering. For awhile I was running into a shaking of the motor at freeway speeds and partial throttle. It seems to me that I have a pump or regulator issue. Like it just isnt putting out enough therefore running lean and throwing the code. Any thoughts on this guys?

How do I check my pump to see if its working?

Scott

 

[Emmo]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

For a temporary check of fuel pressure , you can get yourself a pressure gauge like below and connect to left side fuel rail. This setup is unsupported so could crack fuel rail but a quick cheap way to check pressure and then remove and recap.

I believe on a stock setup pressure with vacuum line pulled from pressure regulator and plugged with your finger tip is 42psig at idle, When reconnected to regulator it'll drop. If you have stock regulator might be worth it to get an adjustable. Then be able to test pump.

Cheap gauge test - not permanent fixture

Adjustable regulator to confirm pump power,

 

[Houseofperformance]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

boost should be 8 psi with your setup - you can test the pump without starting the engine using the testwire that exits the wire loom close to your firewall on the passanger side - lonely wire with connector, just give it 12 volts and the pump should run - hook up a pressure gauge. did you check your ignition components? your problem sounds spark related

 

[Quickstop [UK]]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

x2

I had a similar problem with mine and it turned out the cap was filled with corrosion. That's a real easy check - go there first.

 

[Sportmachines]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Get a boost solenoid in there! Without it there is no boost control from the computer, and the wrong vacuum line configuration.

Also check your timing. Make sure its at zero with the tan wire unplugged.

 

[IDRVSLO]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

The Ty currently has new ignition parts, egr valve, wires, cap, rotor and spark plug. It does have an adjustable FPR in there right now. I dont remember the brand but its like a dark purple color.

 

[TYTILIDIE]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Probably Accufab. With an adjustable regulator on a stock motor you need to have your pressure up to 45psi at the least. At least that has been my experience with the trucks I have worked on.

 

[SevenT6Vet]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

I had same issue until i replaced fuel filter.

check fuel filter first.

if that's ok, go rent a fuel gauge from autzone (free if you return it) and check for pressure at idle. turn key off and see if it holds pressure. if it doesn't, then the check valve is going bad which may be a sign your fuel pump is shortly behind.

 

[IDRVSLO]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Fuel filter is around 3 months old. Where do I connect the fuel gauge to? Pics? Which check valve should I be concerned with?

Also a point I didnt note in the description. I replaced a few vacuum lines this weekend and the first drive that I went on where the car actually got up to temperature was when I started having the issues. I know this might be a pain but can anyone send me detailed pics of the vacuum routing. I have the diagram but I seem to be having issues taking the picture and visualizing on the motor...if that makes sense. Im not an idiot but with this car and since I believe there are numerous things done that I am not aware of I dont know how well the picture lines up with what I have going on.

Scott

PS if I took pics of the engine bay specifically the vacuum routing would that be of more help?

 

[cloneman315]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

need to see what the wbo2 is saying,all other info is worthless untill you know that first.(assuming you have all your basic stuff correct)

 

[Houseofperformance]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

maybe this helps

look at the pic emmo posted - you can see where the fp gauge connects to the fuel rail - it´s a shredder valve on the driver side

 

[IDRVSLO]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

I will print this and go take a look. The Check valves should be facing which way? Also before I waste my breath and time with this. Can my vacuum lines being messed up...if thats what it is...allow my car to idle fine, but run at higher rpms and under load like crap?

 

[IDRVSLO]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

http://www.autozone.com/autozone/ac...&fromString=search&itemIdentifier=232719_0_0_

Will that fuel pressure tester work? They keep talking about a schrader valve...location?

 

[SY2932]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

http://www.autozone.com/autozone/ac...&fromString=search&itemIdentifier=232719_0_0_

Will that fuel pressure tester work? They keep talking about a schrader valve...location?

That's the same on that I have used for years with no problems. I drove my truck with it connected once to rule out a fuel delivery problem. Had to remove the hood and secure it so that I could view it from inside the cab though. If your fuel pressure isn't matching your boost pound for pound (one psi increase of fuel pressure per pound of boost), you definitely have a fuel delivery problem.

 

[IDRVSLO]

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

Re: CONTINUING PROBLEMS How to test fuel pump and pressure? PLEASE HELP

So I threw the Fuel Pressure Tester on today and my FP was at 40psi, I bumped it up to 50 and went out for a drive. I wasnt able to check the FP when driving due to the length of the hose. I didnt feel an improvement which is disappointing. I will take off the hood on Saturdays and make a bracket so I can drive and watch the gauge....wish me luck. Crossing my fingers that its a pump issue. Any thoughts?

 

[IDRVSLO]

Re: Car is fixed

Went to install the AEM Tru Boost and Uego wideband and cam across the silicone hose that went from my turbo to my wastegate.....inspected it, bent it rolled it...etc. Found a cut in it about 1/8th of an inch across. I am just relieved....oh and I want to kill the shop that said I was running lean and was going to blow my motor. Thanks for all the help guys, I have learned plenty that can now be applied to other faults! Now to adjust that boost to the right settings!

 

[ghettosled]

Re: Car is fixed

Went to install the AEM Tru Boost and Uego wideband and cam across the silicone hose that went from my turbo to my wastegate.....inspected it, bent it rolled it...etc. Found a cut in it about 1/8th of an inch across. I am just relieved....oh and I want to kill the shop that said I was running lean and was going to blow my motor. Thanks for all the help guys, I have learned plenty that can now be applied to other faults! Now to adjust that boost to the right settings!

well the shop did originally tell you it was overboosting, but an overboost code is 31, not 44. While that will surely make your WOT run like crap, with mild acceleration or driveability it shouldn't make much of a difference. It should actually accelerate much FASTER then normal for a brief second (but then goes into overboost fuel cut mode)

i recommend you first start with a Datamaster (while fp gauges and wb02s are surely helpful, the datamaster is going to help you 10X as much.)

Also freshen up on your trouble codes here:

http://www.sytyperformance.com/turbotech.php

 

[IDRVSLO]

Re: Car is fixed

Thanks for the advice Ghettosled, I am looking to meet up with some locals this weekend. One had a Datamaster and I am hoping to run some tests while we are there.

 

[Gbodydriver]

Re: Car is fixed

Glad You found out what the issue was and luckily it was a cheap fix..