Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - S13- SR- Gas going fast!

Nicelyphe · 01-26-2012, 08:52 AM

1993 S13
S13 Blacktop SR20DET
Stock stock stock..
Exhaust/FMIC/HKS SSQV BOV/WALBRO PUMP/z32 Fuel Filter/ NGK Iridium Plugs .030 gap
7lbs Stock wastegate

Alright my car has been burning through gas like crazy. A quarter and a half of gas within a 30 minute highway drive going a steady 60. Can literally just watch my gauge move haha.

There is no smell of gas inside/around the car. No black smoke. ECU throws no codes.

Could this just be a bad float? Could something else be pushing the car to burn through gas like this? Bad FPR, injectors, pump?

The ECU that came with the blacktop was a "62" that just recently fried. Now using a "63" since no one around here has a "62". Could this cause gas consumption issues? Some people say the 63 ECU has a diff fuel map vs. the 62, can someone verify that?

How to go about diagnosing this?

EDIT: Car also boosts too 9lbs. Also has just recently started.

Thank you.

01-26-2012, 08:52 AM	#1
Nicelyphe Zilvia Addict Join Date: Jan 2010 Location: PA Posts: 918 Trader Rating: (16)	S13- SR- Gas going fast! 1993 S13 S13 Blacktop SR20DET Stock stock stock.. Exhaust/FMIC/HKS SSQV BOV/WALBRO PUMP/z32 Fuel Filter/ NGK Iridium Plugs .030 gap 7lbs Stock wastegate Alright my car has been burning through gas like crazy. A quarter and a half of gas within a 30 minute highway drive going a steady 60. Can literally just watch my gauge move haha. There is no smell of gas inside/around the car. No black smoke. ECU throws no codes. Could this just be a bad float? Could something else be pushing the car to burn through gas like this? Bad FPR, injectors, pump? The ECU that came with the blacktop was a "62" that just recently fried. Now using a "63" since no one around here has a "62". Could this cause gas consumption issues? Some people say the 63 ECU has a diff fuel map vs. the 62, can someone verify that? How to go about diagnosing this? EDIT: Car also boosts too 9lbs. Also has just recently started. Thank you. Last edited by Nicelyphe; 01-30-2012 at 09:08 AM..