out of fuel?

[anchew02]

I logged my car last night and this is wahat i found. i had 28knk, 19.ms injector pulse,91.3 %duty cycle at like 5500, an 02 .046v im outta fuel right? This was a 3rd gear pull to 5500 and then let off.

 

[doubleclutch99]

That sure sounds like it . do you have a working fuel gage on your regulator?

 

[anchew02]

yea it is set at 42.psi.

 

[doubleclutch99]

If you can, put some copper tubing on your regulator and run your gage in front of the wind shield so you can see it when your in boost. if the pressure goes up one to one with boost your good. if not, then you'll have to dig deeper to solve the problem .

 

[Calan]

If you have 91.3% IDC's at 5500 RPMs (assuming a good tune), then you are out of injector. Sounds like it's time for larger injectors...especially since you are already above stock fuel pressure.

 

[anchew02]

tonight im gonna go get a couple gallons of 105 from the race track. im getting a 500 bonus from work in 2 days so im going to get maft gen2 and some bigger injectors.

 

[Calan]

tonight im gonna go get a couple gallons of 105 from the race track. im getting a 500 bonus from work in 2 days so im going to get maft gen2 and some bigger injectors.

$500 would go a long way towards a nice ECMLink setup instead of the REALLY outdated MAF bandaid.

Just saying is all.

 

[anchew02]

im really thinking about getting ecm link... just when i get the money for it they raised the price :0( i guess i could get ecmlink light and my wideband. then ill have to search for a 90 eprom ecu

 

[DJ23GSX]

How much boost are you running? Do you have a real boost gauge? IIRC 90% IDC's is about where i was on my old 16g at around 15psi with the stock injectors. Is you walbro rewired? Have you boost leak tested lately? A boost leak will throw off your IDC's. Your probly knocking cause the 16g is notorious for boost creeping with the full 3" exhaust.

 

[Bud92gsx]

IDk if you know this but 1g manual fuel presuure is around 36-38 psi not 42..But your 4502 will flow 450cc's at 42psi..So unless you have a way to tune you might be running rich..