165 MAF troubles--CSH Update

[CSH-HQ]

What is the running fuel pressure?.  Meaning in drive at say 50 MPH, or 
better yet WOT of a min or two.
By Broom test, you mean you tapped on it?
Heard a rumor once about the MAF ground tieing to rad support panel, and teh
panel waas the poor connection, might just try a jumper to battery-, and see 
if that's it's.
Could be the ecm itself, the 165 has seen lots of updates.
Grumpy
      1st Post Surgery Bicycle thing 6.4 miles, previous best 6.08
      Pedal time 45 mins continuous, previos 30. with breaks.
      Started one range higher on loading
      Walking with no aids!!!!!
 



>MAF sounds ok at idle..
>Check your O2...  Sounds like deja-vu all over again.. 8-)
>Have you put a scanner on it?
>mike
>
>In message 
>>	This is the lowdown on what I need help with.  My Bosch hot-wire
>>MAF for an 89 L98 Camaro is acting up.  Well really, the engine is acting
>>up and I suspected the MAF was the culprit.  Where I really have trouble
>>is during cold start-up.  The engine will stall and I can't get it to idel
>>properly.  I adjusted the TPS and replaced the IAC valve, but that didn't
>>do the trick.  I then took my old voltmeter to the MAF and checked it out.
>>When the harness is unplugged out of the MAF and the ignition is on, I get
>>12V from the power relay (correct) and I get 5V from the MAF sensor input
>>(correct).  The kicker is when I plug the harness into the MAF.  After I
>>power up the MAF, I measure 2.2V at both the computer and the MAF.  When
>>the engine is idling with the MAF connected, I get 0.4V at idle (correct),
>>but the thing pegs out at near 2.2V @ 4500rpm.  According to everything
>>I've ever seen, engine off ignition on should be 5V and engine on should
>>go from about 0.4V at idle to near 5V at WOT.  With the low redline of the
>>TPI engines, I'd imagine that I should be pulling near 5V @ 4500-5000rpm.  
>>
>>	The engine will run with the MAF connected, and it idles steady
>>even during the old broomstick test.  I can't figure out where the problem
>>lies...could it by the sensor grounds?  I can't find enough information on
>>the insides of this MAF to dig into it.  I don't want to spend the ~$400
>>for a new one either if I can help it.  I'd like to swap another in to see
>>what happens, so possibly would one of you who are doing the MAF->MAP swap
>>like to get rid of your working MAFs?  
>>
>>	Any insight is appreciated.  I've had this problem ongoing for
>>weeks now and I want to get it resolved.  I got to get back out on the
>>road!
>>
>>	Thanks,
>>
>>	DK
>>
>>
>