2000 GP Mass Flow Code??

:banghead: Can they be cleaned and if so with what?
Where can I get one for a descent price?:2cents:
Any Help.
Thanks

PS- I also had a EGR code, could there be any relationship between the two?

You can spray some electrical contact cleaner on it to try to clean it up a little. It might work. Or you can spen the 150 dollars or so like I did and get a new one.

Since its an electrical part and non-returnable you might want to get a GM one from the dealer.

Good luck

It would help to post what model Grand Prix or engine. Also, post the DTC error codes.

For 1999 and up GT/GTP the best place to get a brand new GM MAF sensor is at ZZPerformance (http://www.zzperformance.com/grand_prix/products1.php?id=378&catid=107).

I agree with Jeep stay with a OEM GM/AC Delco MAF sensor only.

:banghead: Can they be cleaned and if so with what?
Where can I get one for a descent price?:2cents:
Any Help.
Thanks
PS- I also had a EGR code, could there be any relationship between the two? Try to spray the MAF before you buy a new one. At least make sure the part the issue and not a related wire, etc. I know the older Delp** models last a long time and rarely fail. Just use carb cleaner and place the MAF downwards when you do so the resistor in the meter doesnt get a spray. Another thing I found that can go wrong, (has it happen on a 2000) is the wiring on the connector. The pins had backed out but you couldnt see or feel that they had. I replaced the connector by splicing into the original wire since it had no more lenght to replace connector only.
Code gone- trouble gone-complaints gone!

EGR may have coking in the intake side off the valve but it a bitch to get in there to clean thoroughy w/o removing intake.

Try to spray the MAF before you buy a new one. At least make sure the part the issue and not a related wire, etc. I know the older Delp** models last a long time and rarely fail. Just use carb cleaner and place the MAF downwards when you do so the resistor in the meter doesnt get a spray.

Cleaning the MAF sensor wire element and thermistor is not a bad idea but it very seldom works and the MAF will need to be replaced especially if a P0102 DTC has triggered the SES/CEL light. This DTC relates to a out of range frequency (low frequency) related problem and a malfunction with the electronic ASIC component in the sealed portion of the MAF sensor.

However, I would not use carb spray cleaner on the wire element/thermistor. Use MAF spray cleaner or electrical contact cleaner only. The contents of carb cleaner such as xylene, acetone, methanol, etc will damage the thermistor.

Last time I checked the MAF sensors for '97-'03 Grand Prixs with the SII 3800 engine VIN "K" and "1" were made by Hitachi. They do fail more than rarely.

Here is one from a '99 Grand Prix GT VIN "K" that generates a persistent P0102 DTC and a cleaning did not help. It has a Hitachi part number and a made in Japan stamped into the metal portion. The MAF is located at the top of and integral with the throttle body on a SII 3800 engine and not at the input of the intake ducting like on GM 3100/3400 engines so I don't understand your advice below. :confused:


Just use carb cleaner and place the MAF downwards when you do so the resistor in the meter doesnt get a spray


http://i5.photobucket.com/albums/y186/lizzywiz/maf_sensor.jpg
MAF Sensor SII 3800

The MAF is located at the top of and integral with the throttle body on a SII 3800 engine and not at the input of the intake ducting like on GM 3100/3400 engines so I don't understand your advice below.
Sorry! Should have been a bit more clear~

The OP did not state whether his problem was for a 3100 or 3800.
I do know for a fact, (see them everyday) that the MAF for a 3.1L is a Delphi part and NOT a Hitachi. I guess I should have been more clear and posted that my advice was for a 3.1. These Delphi MAF's rarely fail. This part can also, yes, be cleaned with carb cleaner, it cleans mainly the screen, and as long as care is taken to avoid the 'sensor resistor' inside the meter will fix the issue 9/10.

I guess if some have replaced the MAF due to poor diagnosis I can understand how they'd feel differently for the failure rate.

It would help to post what model Grand Prix or engine. Would have been good advice to wait and see the OP reponse^.:)

I recall working with the OP, wht-tail in the past and he has a GTP so any issue addressing the GM 60 degree 3100 is moot or irrelevant. :wink:

BTW - The complete throttle body on a SII 3800 including the MAF sensor, TPS and IAC was orginally made by Hitachi.


Also, post the DTC error codes.

IMO it is more important to see what MAF or EGR DTCs he has.

Something a of a little interest I thought I would pass on. For the past 2 years I have been dealing with a code for a low voltage O2 sensor code for the bank 1 sensor 1 on my 2000 GP. I had a total of 6 of the suckers replaced and 3 cats replaced. The most recent was by a dealer who insisted that it was an after-market cat causing the problem and was too small for the engine. $788 dollars later and I had a new OEM cat from the dealer installed and was gauranteed it had cured the problem. Anyway, to make a long and very expensive story short---it turned out to be a MAF sensor reading in the bottom end of its scale causing the low voltage to the O2. Just something to pick the interest.

Something a of a little interest I thought I would pass on.

What engine does your Grand Prix have GPFred?

Sorry bnaylor, its the 3.1. Good engine, runs great now. :)

Sorry bnaylor, its the 3.1. Good engine, runs great now. :)

Not a real problem and thanks GPFred. Nothing wrong with the GM 60 degree engines like the 3100/3400 SFI. I've got the 3400 in my son's Alero. Crappy tranny (4T45E) but good engine. :thumbsup: