Question about 1998 Volvo V70

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Does my '99 Volvo V-70 Turbo Have a MAP sensor?

I'm installing an HHO (hydrogen supplement) unit on my Volvo V-70 turbo.
I did not see any gas mileage gains and was told I need to add an EFIE
unit. Here is what the company said:

It will work on MAP Sensors that operate by varying a voltage to the ECU.

My question is does my Volvo's MAP sensor operate by varying voltage to the ECU
3. Will the Enhancer work with a MAF – Mass Air Flow Sensor?
Answer:
If the sensor operates by varying a voltage to the ECM, it should work unless the MAF Sensor is frequency varied

Posted by on

  • admin919 Nov 11, 2008

    I knew it had a MAP sensor. I asked if the MAP worked by varying voltage to the ECU.
    Not too helpful.


  • admin919 Nov 11, 2008

    Thanks. Now, I know I won't be wasting my money if I order an EFIE.

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  • 160 Answers

Yes it has a map sensor

Posted on Nov 11, 2008

  • james lee Nov 11, 2008

    according to volvo it is a varying voltage sensor, sorry for the messup

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1 Answer

I have a 1987 Isuzu Impulse turbo with a T3T4 turbo and intercooler installed. It won't idle. Accelerator to the floor is the only way it'll stay running. What will fix this?


well if car is stock, is it? is PCM stock and matches your turbo?
no engine stated. 4Ez1 or 4xc1, 4zc1-t (my guess last one)
there is also a EZ1 turbo too...
we start with basics.
did you run the diag flash codes yet? jumper?
ALDL pin 1 to 3. for code 12 (ok) 3 is ground wire.

Right?
1: compression ok. 150psi on all cyl? min?
2: spark timed right?
3: cam timed right?
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i can see there is no MAF sensor, so is MAp BASED
IS YOUR 2 BAR MAP READING RIGHT.?
are all these parts stock???? and matching your setup?

the map and IAT ,(and pcm tables) are used to calculate all fueling rates. The map is baro sensor. air pressure (called vacuum)
and the pressure drop, is what causes fuel rates to rise.
turbo or no turbo.

if car is not stock now's that time to fess up. ?
and full spec. of whats there. as we can not guess any of that.

the 4zc1-t
i see it has an I-tech unit and an turbo controler
and and air modulator, device, (no clues to what it does)
id recommend buying a REAL FSM to work on this complex setup.



25852667-qtce4npyt0vcvgrmwdzgcqbf-3-0.jpg

or login to alldata.com and read that huge section on diagnostic.
i see it injects in pairs too. (PCM does that)
and has DIS wasted spark coils.

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Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

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www.fuelgadgetpro.com

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