AFPR Problems

[Talon628]

kk ill keep ya posted if that works.

[Shane@DBPerformance]

Did you pull the plugs out and make sure they weren't soaking with fuel?

I would switch to some NGK copper plugs too. Also get that underdrive pulley off there, unless it is an real dampner, instead of just a piece of billet.

As others said, fuel cut has nothing to do with fuel supply, running out of fuel, being too rich or too lean. Yes, you do need a bigger fuel system for your setup, but without doing something else, putting in bigger stuff won't get rid of fuel cut. Fuel cut happens when the ECU sees too much airflow, the stock ECU thinks the wastegate has failed causing the turbo to overboost and it shuts fuel off. You can mod the facotry ECU(chip or DSMLink), get a different ECU, or try to trick the ECU by lowering the airflow reported to it(SAFC).

Put the 450s in, change the plugs, maybe even remove the AFPR setup and see if it will start or has fuel and spark. Make sure you don't have a big boost/vacuum leak somewhere too.

[Shane@DBPerformance]

The fuel line goes from the fuel rail to the AFPR and then from the AFPR to the rubber return line right? It's a little hard to see in the pics.

Is there a little air filter on your intake pipe right after the MAS? That would cause some major air metering problems.

[xveganxcowboyx]

Is there a little air filter on your intake pipe right after the MAS? That would cause some major air metering problems.

I didn't notice that. This thread just gets better and better!



Anyway, glad to see you're finally taking advice. You certainly haven't made a friend out of me, but it looks like there are still people willing to help you out.

[Talon628]

The fuel line goes from the fuel rail to the AFPR and then from the AFPR to the rubber return line right? It's a little hard to see in the pics.
yup, and the filter is blocked just was seeing what it looked like lol.. it dont look good either was bored and found it in the trunk.

[Talon628]

Did you pull the plugs out and make sure they weren't soaking with fuel?

I would switch to some NGK copper plugs too. Also get that underdrive pulley off there, unless it is an real dampner, instead of just a piece of billet.

As others said, fuel cut has nothing to do with fuel supply, running out of fuel, being too rich or too lean. Yes, you do need a bigger fuel system for your setup, but without doing something else, putting in bigger stuff won't get rid of fuel cut. Fuel cut happens when the ECU sees too much airflow, the stock ECU thinks the wastegate has failed causing the turbo to overboost and it shuts fuel off. You can mod the facotry ECU(chip or DSMLink), get a different ECU, or try to trick the ECU by lowering the airflow reported to it(SAFC).

Put the 450s in, change the plugs, maybe even remove the AFPR setup and see if it will start or has fuel and spark. Make sure you don't have a big boost/vacuum leak somewhere too.

yeah thats all good and great but i dont think in that mess of wiring i will be able to figure how to get a safc or dsm link hooked up ya know unless im givin like an really specific instructions and even then i dont think there is one single wire or harness where it should be, if you have like a picture of it hooked up in a car it would help me alot, i learn more from pics and hands on then words.

[TkrPerformance]

dsm link is a chip for the ecu you do not need to wire it in. Just have to have a eprom and have some one socket it for you. the wiring does not look that bad I have seen and fixed worse than this. The worst was a kid on here that put in a safc and used duck tape on the wires to hold them to the ecu wiring after he striped the wires and he could not figure out why it did not work right.

[DBMajik]

I have a 750cc chip w/ timing topping at 18 degrees and an SAFC1 if you want them for $150. :)

[Pushit2.0]

Is there a little air filter on your intake pipe right after the MAS? That would cause some major air metering problems.

That is his air meter by pass filter, it needs to be bigger to avoid fuel cut though, or his flamitation valve is sticking.

I would get somthing to tune the car as said, new plugs, and pay someone to dyno tune the car.

~John

[n00b EEtr]

and pay someone to dyno tune the car.

He doesn't have to do that, the car won't ever run :hah: