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Injectors

rob77

By rob77,
in Western Australia

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Gradenko Mentor

Gradenko

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Yes, if you've got easy access to the injectors its worth getting them cleaned and flowed. Mine were blocked even though it hadn't manifested in pinging or rough idle yet. I haven't driven my car yet so I can't comment on the difference, but I remember on SDU people were raving about smoother throttle control, smoother running and better fuel economy after cleaning injectors.

I can highly reconmend EFIS in East Vic Park (as referred to me by Steve-SST). Don't know how much they charge to clean injectors but they were reasonable in fixing up a stuff up another injector place made with my injectors.

I have a bunch of 25% off vouchers for EFIS that you are welcome to. Don't know if they're still valid though.

What did united mean by "leak in the middle"? The middle injectors in the fuel rail leaking? Or some fault in the centre of a injector making it leak? EFIS pressure tested my rail once the injectors were back in and none of them leaked.

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rob77 Veteran

rob77

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Originally posted by Gradenko

Yes, if you've got easy access to the injectors its worth getting them cleaned and flowed. Mine were blocked even though it hadn't manifested in pinging or rough idle yet. I haven't driven my car yet so I can't comment on the difference, but I remember on SDU people were raving about smoother throttle control, smoother running and better fuel economy after cleaning injectors.  

I can highly reconmend EFIS in East Vic Park (as referred to me by Steve-SST). Don't know how much they charge to clean injectors but they were reasonable in fixing up a stuff up another injector place made with my injectors.

I have a bunch of 25% off vouchers for EFIS that you are welcome to. Don't know if they're still valid though.

What did united mean by "leak in the middle"? The middle injectors in the fuel rail leaking? Or some fault in the centre of a injector making it leak? EFIS pressure tested my rail once the injectors were back in and none of them leaked.

I havent really got easy access to the injectors still have the stock plenum in the way. I was just thinking it'd be worth pulling them out, cleaning them and checking the flow before I start leaning on the engine with the ecu tune. I think I might try these people, how/when can I get one of those vouchers off you gradenko?

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Gradenko Mentor

Gradenko

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rob77, I'd be hesitant to remove the plenum just to get to the injectors. Pulling the plenum is an absolute PITA, so only do it if you have to. Unbelievably the gasket between the upper and lower plenum in $85 from Nissan.

I think rev210 has removed injectors with the plenum still on, so give that a go and pm him if you get stuck. ;)

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Gradenko Mentor

Gradenko

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R32-GTS, maybe the rb20 plenum has bolts in different locations, but theres no way you're going to pull a rb25det plenum in 20 minutes.

Just buy a new manifold gasket from nissan that costs 10 bucks.

?? Have you priced these for the rb25det? They're not $10.

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