Well I've read in the forums that running without one causes the mixture to become Rich

but how is this harmful to your engine to burn some extra gas? are there some other harmful side affects when you run without a MAF?

My maf has most likely kicked the bucket so it's a pain to start my car with it, I'll have to get a new one on ebay

 

It'll drown it in fuel. Aside from fouling plugs in no time flat, it'll seep past the rings, contaminate your oil, and eventually wipe your bearings I'd fix it sooner rather than later.

 

I thought the idea of running without a MAF died a long time ago along with the oiled seat-foam air filter idea.

Its bad to run without one. If you have to drive it to the parts store to get a new one thats ok, but I wouldnt go driving it as usual, the engine has little clue how much fuel to feed it, and generally speaking its way wrong.

 

well considering the maf measures the amount of air going in, it wont be getting the right fuel to air mixture because it has no idea how much air is going in, i had to run mine without it for a little while and it seems to run a little better, but i wouldn't go doing this......

 

Why risk getting a MAF on eBay? A new, guaranteed, better MAF can be purchased for about $170 from Wells. You'll never buy another MAF again. You're taking a real chance on a used MAF on eBay...

http://cgi.ebay.com/ebaymotors/ws/eB...tem=1831427541

And what is it that leads you to belive your MAF has failed?

 

$170 is a lot, if it was me personally, i'd find one cheap....

 

When I was running with it, it was very hard to start the car

gave out a 34 code

unplugged the maf and then started the car and plugged it back in.. etc gave a 33 code

I really should replace the relays along with the MAF
which I'll probably have to do

does anyone know the price on a Wells MAF at pepboys and do they keep them in stock?

and do they have a core charge?

 

NO flame intended . But , are you serious ? Ive been running two years without mine ! And had no problems ...Although , I DON'T recommend to anyone removing it b/c I have heard of guys having problems without it . But not those types of problems .

 

You can find a MAF for less then 170$ easy
Aj

 

Trigga,

If your ECM locked a DTC 34, and then a 33, the problem may not be with the MAF sensor itself. If you're getting both error codes, I'd start looking at the connections, relays, and TPS sensor.


You should always test or replace the relays and their wiring first.


I doubt that PepBoys has them. There is no core charge, since the Wells replacement is not remanufactured, but new. It also doesn't have a hot wire, but uses a thick film sensing element like the LT1/LS1 MAFs. It also has a larger diameter body for more flow, and no round wire screens or heat sink fins to impede air flow. THAT'S why it's worth &170.00 instead of getting another inferior, smaller hot-wire reman unit or used unit.

 

But will it work on the '85 and up MAF systems? And if it does I suppose you need to diable MAF burn off on the PROM?


~M~

 

For $170 you can convert to Speed Density and never have to worry about a MAF again.

 

Morley,

'85s are a lone wolf. They used a digital (FM) MAF sensor. '86-89 used the more common analog Bosch MAF. The Wells SU-145 will not work on those systems, but there are similar replacements for the '85.

There is no need to disable anything. There is a resistor (dummy load) in the MAF electronics package to emulate the hot wire for the purpose of satisfying the burn off circuit. The ECM will never know the difference.


And John is correct. For the cost of a replacement, you can install a MAP sensor and used ECM to convert to S/D,and still have money left to go toward a Pocke Programmer and raw PROMs. Of for a couple bucks more and a little more time, you can convert to OBD-II from a '93 and use both a FM MAF and MAP sensor, where the sky is the limit.

 

You may be running ok, but if it's running to rich for to long you risk wearing out your cylinders because the extra fuel washes the oil off the cylinder walls. I've seen more that 1 engine ruined because of this.

 

Just from general mechanical experience, a sensor does just what it's name implies, senses a condition which results in changes in the way the engine operates. Why would you disable an object which has an effect on the way that your engine tunes itself. Just my .10 cents, my .02 cents is free.

 

well it turned out my MAF was in good working order but one of the relays were shot
:lala: :lala: :lala: :lala: :lala: