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| ghia v8 | 
				
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							ive a el v8 and it runs very lean.ive had it dyno tuned and the bloke adjusted the timming and increased fuel by 5% at wide open throttle.It was fine for a few weeks then went back to pinnging. plugs are new, maf is clean, throttle body is clean. fuel filter is new. the car made 140rwkw so i dont know whats causing it.						
						
						
												 
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| tickford_6 | 
				
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 Posts: 6449 Joined: 11th Nov 2004  | 
			
					 
							
							how did he increase feul by %5????   
 
				what mods do you have?  | 
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| xf_man | 
				
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 Age: 47 Posts: 624 Joined: 21st Mar 2005 Ride: Triton ute BA Futura Location: Woori Yallock  | 
			
					 
							
							timing for sure						
						
						
												 
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| EDXR8 | 
				
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					 {USERNAME} wrote: how did he increase feul by %5????  
I am wondering the same thing, unless it has an aftermarket adjustable fuel pressure reg. What air fuel ratio was it runing at WOT? Generally lean running is caused by dirty/stuffed MAF sensor, bad injectors or fuel system, bad O2 sensors or intake leaks.  | 
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| ghia v8 | 
				
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							yeah, i forgot to mention that i have a chiptorque chip in it. it ran perfect for a few weeks then went back to s**t						
						
						
												 
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| Kenaz | 
				
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							Do you run it on 98?
 
				My EL V8 pings on anything less than 98 Octane.  | 
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| ghia v8 | 
				
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							yeah always						
						
						
												 
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| EBXR8380 | 
				
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							How old are your 02 sensers???
 
				I would say they have cleaned maf and checked that its functionable??? The tps voltage pressivley goes up as throttle opens??? 
 _________________ As in ZOOM 126 edition  | 
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| who-haa | 
				
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							clean airflow sencor i just cleaned mine it has been pining would not rev & had no go about it.
 
				there are two small wire's on it that get build up on them,with some carb-cleaner ,clean off & put back on. with mine it fixed pining, now rev to 5600rpm again.  | 
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| concorde | 
				
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							get an MAF from a Mustang or EL GT, they are bigger and more easily tuned.
 
				My mate did this and worked a treat. 
 _________________ 2nd Place Summernats19 SQ Comp, Street Pro 0-600 Class
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| mickoxhxr8 | 
				
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							Had same thing a while back and for me was only the one O2 sensor. Replaced both and all is good.						
						
						
												 
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