Locating MAF and EGR

Pinx71 · Mar 17th, 2020, 14:12

Hi,

I'm new to cars and just bought my first car. It's a left hand drive 1998 Volvo V40 1.8L petrol. Engine is a bit sluggish so I thought it would maybe help if I cleaned the MAF sensor and EGR system but I couldn't locate them.

Here are pictures from my air intake.
https://ibb.co/rf9G4Q7
https://ibb.co/gWYCWP2

I think somebody already took the EGR system out. Here are pictures of my exhaust manifold.
https://ibb.co/CstzMfX
https://ibb.co/TwCNw9G

Also, there is a hole in my air box. I wonder what it's for.
https://ibb.co/PYMCcTm

magnuz · Mar 17th, 2020, 14:42

I'm assuming that is the 1.8 volvo engine & not the GDI ?
So therefore the MAF is attached to the top of the air filter box & has a large diameter pipe going to the engine, it also has a mutiplug attached to it .
The MAF is quite delicate inside, so be careful not to damage it !
There is no EGR on this engine. The missing part on the exhaust manifold is just a warm air pipe that goes to the bottom of the air filter box. It's usually a flexible aluminium pipe, & it's mean't to help the car drive a bit better when the engine is cold. It's not really all that important & you probably won't notice much difference whether it's fitted or not ?

Pinx71 · Mar 17th, 2020, 15:53

Yeah, it's a non GDI. I definitely don't have MAF where you described it should be. I have looked at photos of other V/S40s and I don't have the MAF there where it usually is. Maybe I'm missing the MAF but how does the engine even work then? I found a video showing the same engine that I have: https://www.youtube.com/watch?v=hO053K4mBd4

magnuz · Mar 17th, 2020, 18:32

It's possible that older models may not have a MAF sensor, but use a MAP sensor (manifold absolute pressure) instead ?

clarkey1984 · Mar 17th, 2020, 18:35

Quote:

Originally Posted by magnuz

It's possible that older models may not have a MAF sensor, but use a MAP sensor (manifold absolute pressure) instead ?

This is most likely, as I don't recall my phase 1 2.0 having a MAF.

Mar 17th, 2020, 14:12	#1
Pinx71 New Member Last Online: Jun 28th, 2020 19:22 Join Date: Mar 2020 Location: Tallinn	Locating MAF and EGR Hi, I'm new to cars and just bought my first car. It's a left hand drive 1998 Volvo V40 1.8L petrol. Engine is a bit sluggish so I thought it would maybe help if I cleaned the MAF sensor and EGR system but I couldn't locate them. Here are pictures from my air intake. https://ibb.co/rf9G4Q7 https://ibb.co/gWYCWP2 I think somebody already took the EGR system out. Here are pictures of my exhaust manifold. https://ibb.co/CstzMfX https://ibb.co/TwCNw9G Also, there is a hole in my air box. I wonder what it's for. https://ibb.co/PYMCcTm

Mar 17th, 2020, 14:42	#2
magnuz Ancient Last Online: Apr 15th, 2024 17:03 Join Date: May 2012 Location: chesterfield	I'm assuming that is the 1.8 volvo engine & not the GDI ? So therefore the MAF is attached to the top of the air filter box & has a large diameter pipe going to the engine, it also has a mutiplug attached to it . The MAF is quite delicate inside, so be careful not to damage it ! There is no EGR on this engine. The missing part on the exhaust manifold is just a warm air pipe that goes to the bottom of the air filter box. It's usually a flexible aluminium pipe, & it's mean't to help the car drive a bit better when the engine is cold. It's not really all that important & you probably won't notice much difference whether it's fitted or not ?

Mar 17th, 2020, 15:53	#3
Pinx71 New Member Last Online: Jun 28th, 2020 19:22 Join Date: Mar 2020 Location: Tallinn	Yeah, it's a non GDI. I definitely don't have MAF where you described it should be. I have looked at photos of other V/S40s and I don't have the MAF there where it usually is. Maybe I'm missing the MAF but how does the engine even work then? I found a video showing the same engine that I have: https://www.youtube.com/watch?v=hO053K4mBd4

Mar 17th, 2020, 18:32	#4
magnuz Ancient Last Online: Apr 15th, 2024 17:03 Join Date: May 2012 Location: chesterfield	It's possible that older models may not have a MAF sensor, but use a MAP sensor (manifold absolute pressure) instead ?

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