86 all stock
According to my scan tool the output of my MAF is around 13-1500 at idle. I think it displays in grams and was expecting to get it down to about 5 per other threads but even with the throttle plate stop screw not touching the throttle plate it still stays right about there. I suspect someone else has futzed around on this as the cover was already gone
Car idles ok but does hunt a little.
Code 36 but i have checked it all the way to the computer (replaced). The ECM never tries to pull the MaF burnoff relay on when the car shuts off. New MAF as well. All relays and wires check out ok. I was thnking that some sensoe value was whacked and the computer was compensating by not turning on the relay and setting the code. All other data looks ok, car goes into closed loop, runs strong. Just this one code and i did verify that when shutting the key off, the ECM does not try to trip the burnoff relay. Anybody seen this before?

 

If your scan tool is truly displaying counts (A/D counts * 7): 1300-1500 counts is between 140 to 206 grams/sec. This is in the vicinity of peak airflow for a stock L98 at WOT.

Keep in mind that the 16-bit MAF signal is limited to 30 gm/sec at 800 rpm by the max maf vs rpm table, so this is not normally possible. The 8-bit unlimited airflow signal is another story.

I suspect something is wrong with your tool and you're reading/displaying incorrect data.

;----------------------------------------
; gms/SeC BIN VDC #/HR
;----------------------------------------
FCB 166 ; 134.2 1280 3.66 1036
FCB 176 ; 142.3 1312 3.75 1098
FCB 186 ; 150.4 1344 3.84 1161
FCB 196 ; 158.5 1376 3.93 1223
FCB 207 ; 167.4 1408 4.02 1292
FCB 219 ; 177.1 1440 4.11 1367
FCB 230 ; 186.0 1472 4.21 1435
FCB 242 ; 195.7 1504 4.30 1510
FCB 255 ; 206.2 1536 4.39 1591
;--------------------------------------------------

;--------------------------------------------------
; Max Air Flow vs RPM
;
;
;
; TBL = Grams/Sec
;--------------------------------------------------
ORG $06F2 ; gms/SeC RPM
;------------------------------------------
FCB 23 ; 23 0
FCB 23 ; 23 400
FCB 30 ; 30 800
FCB 48 ; 48 1200
FCB 68 ; 68 1600
FCB 89 ; 89 2000
FCB 111 ; 111 2400
FCB 141 ; 141 2800
FCB 170 ; 170 3200
FCB 200 ; 200 3600
FCB 220 ; 220 4000
FCB 236 ; 236 4400
FCB 245 ; 245 4800
FCB 247 ; 247 5200
FCB 247 ; 247 5600
FCB 247 ; 247 6000
FCB 255 ; 255 6400
;--------------------------------------------------

 

Thanks, you may be right about the scan tool. Its a bosch 1300 but it wont talk to my ECM unless i set it to an 87. On 86 it always says ECM no response. I tested it on my buddies early 86 with an auto and it works fine but his ECM is an older version. I spoke to Bosch and they said there are variations in those years so it may not work on all cars. That would have been nice to know before i dropped $300 on it. All the other values seem viable such as temps and voltages but who knows.
Aside from the count value, i still have the issue of the code 36 but i know the circuit is ok. It is also possible that a wiring issue caused damage to the MAF burn off relay circuit inside the ECM. i wish i had a way to test it. My buddies 86 doesnt have the same wiring