Fuel injector questions

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bigpete8
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Fuel injector questions

Post by bigpete8 »

Couldnt seem to find the part numbers for fuel injectors anywhere did find this viewtopic.php?f=19&t=34489&p=474592&hil ... rt#p474592
which was useful

anyway
Does this look right..

MAZDA RX8 MX5 YELLOW FUEL INJECTOR SET OF 4 DENSO # 195500-4450 (quantity 4) https://www.ebay.co.uk/itm/153082895493

Mazda RX8 MK1 231PS fuel injector 195500-4450:N3H1-13-250A:N3H113250A
(quantity 2)
https://www.ebay.co.uk/itm/153676505076
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Last edited by bigpete8 on Fri Mar 27, 2020 3:57 pm, edited 1 time in total.
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Re: Fuel injector Part Numbers

Post by bigpete8 »

Anybody got any idea if they look right - cant find any refurbished RED so they are aftermarket ones :$
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Re: Fuel injector Part Numbers

Post by Boston Rotary »

Don’t buy aftermarket ones only Oem
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Re: Fuel injector Part Numbers

Post by bigpete8 »

Was thinking that, presumably the Denso are OEM?
I have found service kits
https://ebay.us/laHNHf
https://ebay.us/J7Ia0G
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Pete/Peter him/he/hrh couldn't really care as have 3 siblings and was lucky not to get called by the dogs name.

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Re: Fuel injector Part Numbers

Post by mrspiller »

So many copy injectors on the market
Be careful what you buy


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Re: Fuel injector Part Numbers

Post by bigpete8 »

Have ordered the refurbish kits above and watched vid on how to diy clean/test so looking for some decent s/h ones now.
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Re: Fuel injector Part Numbers

Post by bigpete8 »

Follow up question...
Anyone know what voltage the injectors need to open?
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Re: Fuel injector questions

Post by bigpete8 »

Did find something on rx8.Com suggesting
yellow P2/Secondary injectors:

Flow Rates:

450cc/min at 3 bar

486cc/min at 3.5 bar

524cc/min at 4 bar

Resistance: 11.8-16.5 Ohms

Voltage: 8-15 Volts, Nominal 13.5 Volts

Amperage: 1.0 Amps

Pressure: Min. 36 PSI (2.5 bar), Max. 101 PSI (7 bar)

Any reason to expect reds need a different voltage?
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Pete/Peter him/he/hrh couldn't really care as have 3 siblings and was lucky not to get called by the dogs name.

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Re: Fuel injector questions

Post by boosted »

There all 12 v dc mate.

Ive checked injectors at home with a injector plug connected to 12v.
A bit of piping and a syringe to create pressure...i used cataclean as fluid and was clearly able to see that my injectors were creating a nice spray pattern and although no flow data they all looked the same flowing so as there was not an odd 1 out they were deem good... my misfire was found elsewhere.

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Re: Fuel injector questions

Post by bigpete8 »

Planning on this. ..

If anyone has a spare connector they can post id be grateful
Sunlight Silver 231

Pete/Peter him/he/hrh couldn't really care as have 3 siblings and was lucky not to get called by the dogs name.

Living with a rotary - 7 Years in
viewtopic.php?p=1105043#p1105043