Colin Posted October 28, 2014 Report Share Posted October 28, 2014 So I installed a 3" GM maf with translator back in August. Had to modify the connector on the translator side, as expected. I tuned it and it was running really good for a few weeks. Then one morning I went to go to work and I started up the car and it was running really rich. Like 10.0 or below AFR. It got a little better when the car warmed up, but it would practically die when I came to a stop. I found and fixed two vacuum leaks which didn't help much. I finally just put the stock maf back on and it ran perfectly. I found a melted pin in the maf connector so I suspected that was causing the issue. I removed the wire from the connector, cut the pin off, and spliced it into the correct wire on the factory harness. This staill makes no difference. Again, the symptoms are: Too rich on startup, and too lean idling once the engine is warmed up. The car runs fine with the stock maf. Link to comment Share on other sites More sharing options...
importwarrior Posted October 28, 2014 Report Share Posted October 28, 2014 i know this is no help but i have a MAF-T and cant stand it.i will be swapping it out for a Megasquirt.the MAF-T has a fixed engine intake air temp setting of 78. if it gets colder out the MAF-T might need seasonal adjustments. Link to comment Share on other sites More sharing options...
CarlosFley Posted October 28, 2014 Report Share Posted October 28, 2014 Yeah I'm having the same problem with mine. Ran fine for weeks and randomly ran like crap one morning. Freaking a... I've decided to save up for 2jz Link to comment Share on other sites More sharing options...
ucw458 Posted October 29, 2014 Report Share Posted October 29, 2014 Melted wire on the maft suggests too much current on that wire. May have hurt the maft. Personally I don't like those things. I ran one for all of one day. So inconsistent day to day. Settings that work fine at noon on a warm day are off after sunset when everything cools down. A standalone is a much better tuning device. Link to comment Share on other sites More sharing options...
importwarrior Posted October 29, 2014 Report Share Posted October 29, 2014 i agree cant wait to get rid of mine. Link to comment Share on other sites More sharing options...
FRO Posted October 29, 2014 Report Share Posted October 29, 2014 The ECU is real slow adjusting the fuel curve. You have to give the ECU time to adjust to the MAS-T And yes,, sometimes 3-4 weeks Link to comment Share on other sites More sharing options...
Colin Posted October 29, 2014 Author Report Share Posted October 29, 2014 Today I took the GM maf off the car to look at it and clean it. It did have a pretty good amount of oil on the wires so I sprayed it off with MAF cleaner and let it dry. When I went to put it back on the car, I noticed it was on the wrong way when I took it off. I installed it the correct direction and now the car seems to run better. The funny thing is it ran perfectly fine for three weeks before any problems occurred. Link to comment Share on other sites More sharing options...
Turbo Cary Posted October 30, 2014 Report Share Posted October 30, 2014 I have had my maf t for about 3 years now. It works fairly well. I have noticed that every few months it needs readjusting a hair or two to keep the tune right. Having a wideband gauge is a must. If you can't seem to get it running 100 percent set boost to factory pressure (assuming you might have it turned up) and get a solid base tune setup. After that increase boost in 2 psi increments and rich or lean the maf as needed until you get your target boost pressure/afr Link to comment Share on other sites More sharing options...
Recommended Posts