Thoughts on leaky fuel injector

ddvette9 · 02-08-2012, 11:50 AM

Replaced MAF last weekend but sputtering on ignition and at idle still isn't fixed. Very very pissed this wasn't addressed and I have to go back to the dealership.

I'm thinking a leaky fuel injector or a bad fuel filter. Rough starts, decreasing gas mileage, rough idles.

What do you guys think? I hope my dealership is capable of fixing this

MattP725 · 02-08-2012, 02:16 PM

Quote:

Originally Posted by ddvette9

Replaced MAF last weekend but sputtering on ignition and at idle still isn't fixed. Very very pissed this wasn't addressed and I have to go back to the dealership.

I'm thinking a leaky fuel injector or a bad fuel filter. Rough starts, decreasing gas mileage, rough idles.

What do you guys think? I hope my dealership is capable of fixing this

IMO I would bet it is a bad IAC valve (assuming we have one on the cars which I'm sure we do).

More likely to be that than a leaking injector but anything is possible. Can you smell gas?

ddvette9 · 02-08-2012, 04:11 PM

Not to my knowledge I can't smell gas. But fuel pressure and filter and injectors may be the problem.

6MT · 02-08-2012, 04:15 PM

You should have some sort of fault code stored in the ECU. Scan that puppy and find out what the issue is.

BTW, there is no servicable fuel filter on a 370.

Mt Tam I am · 02-08-2012, 04:17 PM

Quote:

Originally Posted by ddvette9

Replaced MAF last weekend but sputtering on ignition and at idle still isn't fixed. Very very pissed this wasn't addressed and I have to go back to the dealership.

I'm thinking a leaky fuel injector or a bad fuel filter. Rough starts, decreasing gas mileage, rough idles.

What do you guys think? I hope my dealership is capable of fixing this

I think it needs to get fixed. I had my MAF replaced due to Service engine light. No perfomance issues associated. I certainally hope the dealership is capable.

Montez · 02-08-2012, 05:34 PM

Sounds as if it could be a Bad Ignition Coil...

ddvette9 · 02-08-2012, 06:55 PM

Any updates if our cars have an IAF and also what do you guys think about a fuel relay problem

02-08-2012, 11:50 AM	#1 (permalink)
ddvette9 Track Member Join Date: May 2009 Location: Florida Posts: 823 Drives: 2013 Scion FRS Rep Power: 17	Thoughts on leaky fuel injector Replaced MAF last weekend but sputtering on ignition and at idle still isn't fixed. Very very pissed this wasn't addressed and I have to go back to the dealership. I'm thinking a leaky fuel injector or a bad fuel filter. Rough starts, decreasing gas mileage, rough idles. What do you guys think? I hope my dealership is capable of fixing this

02-08-2012, 04:15 PM	#4 (permalink)
6MT A True Z Fanatic Join Date: May 2009 Location: ITU Zone 2 Posts: 22,459 Drives: Reliant Robin Rep Power: 1790	You should have some sort of fault code stored in the ECU. Scan that puppy and find out what the issue is. BTW, there is no servicable fuel filter on a 370. __________________ Andrew 2009 370Z Sport/Touring 6MT sold 2013 Honda Civic Si coupe D/D

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02-08-2012, 04:11 PM	#3 (permalink)
ddvette9 Track Member Join Date: May 2009 Location: Florida Posts: 823 Drives: 2013 Scion FRS Rep Power: 17	Not to my knowledge I can't smell gas. But fuel pressure and filter and injectors may be the problem.

02-08-2012, 05:34 PM	#6 (permalink)
Montez Track Member Join Date: Sep 2009 Location: Manhattan Beach, Ca Posts: 604 Drives: 16 LEX GS,09 Z,03Max Rep Power: 17	Sounds as if it could be a Bad Ignition Coil...

02-08-2012, 06:55 PM	#7 (permalink)
ddvette9 Track Member Join Date: May 2009 Location: Florida Posts: 823 Drives: 2013 Scion FRS Rep Power: 17	Any updates if our cars have an IAF and also what do you guys think about a fuel relay problem