Question about 1988 Mazda 626 Turbo

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Which Mazda diesel engine do I have? RF, RF-CX or RF-N

I have a Mazda 626 Diesel with a Comprex Wave supercharger.
I have a Green Cover, Mazda 626 Diesel, workshop Manual suppliment which covers RF 22.7:1 compression ratio. This is the model prior to mine (I am told). I think (but am not sure) I have the RF-CX 21.1:1 compression ratio. The RF-N is 22.7:1 compression ratio. The three engines are different as the inlet or exhaust or both valves have different timing settings.
I too am trying to find the correct supplement for my engine.
fitberg

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  • berg76 Jun 14, 2009

    Thanks alicantecoli,
    Tried that. The wagon is a 1992 model Imported 1997.
    That is all I got apart from the Vin No. and Engine No. The engine is not original.
    berg76

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The engine is a RF- CX the CX denotes comprex pressure wave supercgarger

Posted on Dec 24, 2009

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  • Mazda Master
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Look on the cars papers and it should tell you engine type

Posted on Jun 14, 2009

  • Colin Stickland
    Colin Stickland Jun 14, 2009

    dont know enough about mazada engine types to answer your question,but iam intrigued as to what additives you are trying to add??

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1 Answer

Where is the fuel pump relay on a 2.0 d suzuki vitara 2005


the NON_GRAND VITARA is not here in 2005 sorry.
2.0D (that mean diesel?)
vitara are sold all over planet earth. where are you????
nor are they the SAME,
and vast engine options, there is a J20 gas engine.
the diesel is unlike any gas cars. all parts. related.
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eg;
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my guess is that sparse "D" means diesel.
this is usa forum we dont have the RF here.
actually there are 4 engines.
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2.0 L RHW/RHZ I4 (diesel)

learn that all diesels have there own matching parts
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As of 2003, the smaller Suzuki Vitara has been withdrawn from the North American market.!!!!!!
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why not post to a non usa car forum even a real suzuki forum.?

many suzuki use a large pink wire for the pump power
this can be a big clue, looking at the relays.

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Grand vitara RF diesel oxygen sensor location


old post.
in what country.?
smog controls vary by , you guessed it, country.
2 used world wide, diesels.
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2.0 L RHW/RHZ I4 (diesel)

RF.
did you look first?
at the exhaust header, for 4 pin devices, (sensor) there.
look again. its there.
are you even sure there is ONE?
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ever consider buying the FSM for this car.
and now no more wild goose chases?
ask suzuki for the service man.

its really a MAZDA , i think
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if it is, then the 02 is at the header collector junction, very near.
the down pipe. or the actual exh. manifold end collector.
like most cars....

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1 Answer

Hi my mates p reg 2lt turbo disel vitara has lost power and useing lots of fuel


tell him to get it fixed.
or buy the FSM and do what it tells.
run the tests, on the system.
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this is a MAZDA engine. based off their FE.
so you can either buy the Suzuki fsm and read about it or
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id check compression first. (make sure engine block is ok)
then work controls.

quote:
One of Mazda's more popular diesel engines, it was also available with a pressure wave supercharger called Comprex.

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1 Answer

Lack of power in Mazda 626 RF 74ps (100 bhp), can I check and repair the turbo myself, I think the by-pass v/v might be open, any ideas please? Peter


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1 Answer

I HAVE A 99 Suzuki Escudo 2.0d RF-Motor. How much OIL?


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Mar 13, 2010 | 1999 Suzuki Vitara

1 Answer

Is it economical to replace exhaust manifold gasket (to engine)on 1985 626 mazda sedan. Are parts still available?


Yes and if you carnt get them local then get on to e-bay or one of them and you will also save yourself money.
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Oct 29, 2009 | 1985 Mazda 626

1 Answer

I bought a diesel engine RF MAZDA


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2 Answers

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1 Answer

Mazda runs for 5sec then stops


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Dec 02, 2008 | 1998 Mazda 626

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