Do these numbers look right?

Dave Noll · 04-04-2014, 03:24 AM

Bobby,
I was a driveability mechanic for a number of years & my stocker is pre-computer. That said, I'm not familiar with this software. I don't know if it disregards O2 input in open loop but beside's the 14.35 AFR in both graph's the "O2 FBK" is 0 as well. I don't know how cold PA is right now but to get the coolant to 80, that 02 should read something. What I really don't like is the MAP is reading almost atmospheric @ 1200. 7.5ms pulse width is really fat for idle, it does go to 6ms, still fat, revved up but the MAP still looks low.. Vacuum line problem, dead MAP, ........ do you have spare parts that you can A.B.A. test with ? Can you also backprobe the 02 connector with a DVOM to get an actual reading from it ? Does this use the stock MAP sensor ?

04-04-2014, 03:24 AM	#6
Dave Noll Senior Member Join Date: Nov 2007 Location: Div. 6, Eastern, WA Posts: 710 Likes: 2,677 Liked 240 Times in 112 Posts	Re: Do these numbers look right? Bobby, I was a driveability mechanic for a number of years & my stocker is pre-computer. That said, I'm not familiar with this software. I don't know if it disregards O2 input in open loop but beside's the 14.35 AFR in both graph's the "O2 FBK" is 0 as well. I don't know how cold PA is right now but to get the coolant to 80, that 02 should read something. What I really don't like is the MAP is reading almost atmospheric @ 1200. 7.5ms pulse width is really fat for idle, it does go to 6ms, still fat, revved up but the MAP still looks low.. Vacuum line problem, dead MAP, ........ do you have spare parts that you can A.B.A. test with ? Can you also backprobe the 02 connector with a DVOM to get an actual reading from it ? Does this use the stock MAP sensor ? __________________ Dave Noll, EF/S ,?/SA 6526