Posted: Sat May 03, 2014 8:00 pm Post subject: loss of power
Hey guys, before I throw more money at this issue lemme ask first.
Ok, so it's an 04 SS Indy, 138k on it. Brand new tranny installed at 100k. It'll smoke the tires no problem, it shifts nice an smooth during normal cruising
Here's the problem, under hard acceleration around half to 3/4 throttle it'll completely drop off the power for half a second and jump back up. And feathering the throttle doesn't seem to get it to kick back in faster. No check engine light no odd noises. So my first thought was TPS, $70 later and 5 minute install later... Didn't change anything.
So now I'm thinking, my boost gauge doesn't work. So maybe the pcm doesn't know my boost level either. but I thought the boost was measured by the MAF such was just replaced. But on O'rileys I can buy a boost sensor separate. Does this theory sound plausible?
Idea #2, the fuel filter was just replaced so it shouldn't be clogged, maybe the fuel pump is weak? But when the power kicks back up, it seems to be full strength.
So that's what I got, I'll be checking the fuel pressure tomorrow, but lemme know if you guys have any ideas. Thanks much.
Ok, so I've got a MAF sensor circuit low code I've heard that the MAF and speed sensor tie together. The speed sensor is not reading correctly, at 35 it reads 65 on the scan tool, and 65 is reading up around 110. Could this be causing my code? The MAF sensor was just recently replaced, and it ain't cheap so I really don't want to buy another one and hope for the best.
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