Questions on MAF what to do?

[McD]

Finally got the engine in the car and running after 3yrs down time. (long story)

Just started on the tuning driving back and forth to work, after doing some break-in.
And the other night the 1G MAF sends a code, unplug the sensor blow off any dust and re-attach it and CEL goes away, next morning it comes back and stays, obviously car can’t get out of it’s own way. haven't driven it since

What should I do… is the 1G MAF toast?
Or should I…

Find a 2G MAF
Get a translator to use a GM MAF, or
Get the translator pro and go speed density?

I would like to run blow thru just for the simple fact that I bought a stupid RFL BOV a few years back

I’m assuming my car doesn’t have a Eprom ecu since it’s a 90 awd

Mods
Rebuilt engine
Eagle rods
Ross pistons 8.6cr measured
Balanced rotating assembly
No balance shafts
Comp cams (street version)
50 trim internal gate (Frankenstein 50 from turbochargers.com).
adj fuel pressure regulator
larger fuel pump don't remember exactly which one
JUN flywheel
2600 clutch
SAFC
3” exhaust - no cat
Currently still using the side-mount intercooler
but I have a water / air that I am planning to fab this summer.

Sorry about the long post - wanted to put all the info in.

Thanks
Jason.

 

[GVR4592]

I would just get a 2g or Evo maf sensor. The others are a waste of money unless you are maxing out a 2g or Evo sensor.

My cousin's 90 car came with an Eprom, you check it out and make sure.

 

[McD]

Thanks
I know that for the 2G sensor you just have to re-wire the plug. Is it basically the same with the EVO? I should be able to find that on a search.

I do like the Idea of the GM MAF because I would like to use the space around the air cleaner for some smoother bends to the water to air intercooler.

Jason

 

[jepherz]

I would do like I did and get a 3g maf. It has been tested to flow within 1% of EVO mafs. I know a guy who can get you a harness as well as a brand new maf if you need, and a new eprom will make your car run like stock would've been meant to.

This way, you don't have to retune every temp change like you do with the maft...

 

[Rex2342]

My girlfriends car did something like this the other day. I went nuts swapping out mafs 1g and 2g with no luck. The car was running disgustingly rich and would barely move while throwing the maf code. It turned out to be the SAFC. The guy we bought it from did a half ass job putting it in and the signal wires for the maf came off causing the CEL. Once I soldered them together problem solved.

 

[McD]

Thanks
I will look in to that as well hopefully this weekend and while I’m in there check out the ECU for the Eprom as well.

I don’t have any knowledge about the 3G or EVO mafs (yet) are they around the same size as the 1G & 2G, and what kind of hardware and the ~cost to swap to that kind of setup?

Jason

 

[Rex2342]

I'm not sure about the Evo maf but the 2g just needs wired in. There is a how to on the VFAQ to make an adapter harness so you don't have to cut up your factory one.I have one and a 2g maf but my buddy is using it right now. When I had mine installed I used the entire snorkel and everything from the 2g. It was a very tight fit with the K&N filter but it did fit. Dejon tool sells a pipe that use's the 2g maf and puts in near the stock location in the engine bay. I didn't see what size injectors you have but with the 2g you'll need at least 550's or you'll run lean.

 

[McD]

Right now I have a 3” hard pipe from my 1g MAF to the turbo, so I may be able to re-use it with a 2g, or even fab up a new one to fit.
Injector size is something that I forgot to put in the mod list
They are 720’s

I’m really going to have to sit down and put together a list of price and just decide what to do this weekend, but first see if I can find a used 2G MAF in the u-wrench-it this Saturday.

Thanks
Jason.

 

[jepherz]

A 3g maf just needs to be wired in, and hopefully you have an eprom ecu so that you can get a new eprom from dsmchips.com and make the car run like it was built with it. Also, another bonus to the 3g maf is that it has a 3 1/8" outlet, like the stock aircan, so you can use the stock intake hose if you want.