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10-05-2012, 08:40 AM
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#1
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DC Pit Crew Boss
Posts: 11,146
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Location: Brandon, Fl
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Help with code 36
Got a code 36 for a bad or failing mass air flow sensor, problem is there are no symptoms other than when I initially start the car when its cold, the idle drops way down and stumbles for a second or two then returns to normal. Car runs fine after that, no problems with acceleration and starts are normal. Any thoughts appreciated. Thanks.
Bob
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1988 Competition Yellow convertible
Florida muscle car guys click
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Your Proctologist called, he found your head. 
"My dog Minton ate two shuttlecocks yesterday."
"Bad Minton."
Open air box, K & N, Throttle body bypass, Air Foil, AFPR. Brodix heads, Harland Sharp 1.6 roller rockers, Lingenfelter cam, Superram, 2800 stall torque converter, 3:54 rear, Melrose exhaust system, long tube headers, 3" high flow cats, LT1 mufflers. ZR1 rims 17 x 9.5 front with 275's and 17 x 11 rear with 315's |
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10-05-2012, 01:08 PM
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#2
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DC Crew
Posts: 31,937
Member #1067
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Location: Brandon, FL.
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Rare 1987 bright red
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It's the relays by the battery. Mine used to do that too.
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Sampson 9/22/97-1/1/05
Outside of a dog, a book is man's best friend. Inside of a dog it's too dark to read
Florida muscle car enthusiast click here |
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10-07-2012, 08:17 AM
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#3
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DC Crew
Posts: 657
Member #117437
Member since: Aug 2011
Location: Goddard KS
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Quote:
Originally Posted by raidmagic
It's the relays by the battery. Mine used to do that too.
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11-30-2012, 01:25 PM
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#4
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DC Pit Crew Boss
Posts: 11,146
Member #1057
Member since: May 2003
Location: Brandon, Fl
My Corvette(s)
88 convertible
Thanks: 80
Thanked 7 Times in 6 Posts
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Is there any way to test them to tell if they are bad???
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1988 Competition Yellow convertible
Florida muscle car guys click
here
Your Proctologist called, he found your head.
"My dog Minton ate two shuttlecocks yesterday."
"Bad Minton."
Open air box, K & N, Throttle body bypass, Air Foil, AFPR. Brodix heads, Harland Sharp 1.6 roller rockers, Lingenfelter cam, Superram, 2800 stall torque converter, 3:54 rear, Melrose exhaust system, long tube headers, 3" high flow cats, LT1 mufflers. ZR1 rims 17 x 9.5 front with 275's and 17 x 11 rear with 315's |
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11-30-2012, 02:51 PM
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#5
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DC Pit Crew
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retired engineer, engine builder, racer 1985.1992.1996 cpes
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" IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!" |
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11-30-2012, 04:09 PM
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#6
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...I'll help you out Bob, let me find my "decoder ring" first....
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11-30-2012, 04:39 PM
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#7
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DC Pit Crew Boss
Posts: 11,146
Member #1057
Member since: May 2003
Location: Brandon, Fl
My Corvette(s)
88 convertible
Thanks: 80
Thanked 7 Times in 6 Posts
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Quote:
Originally Posted by 92Roadster
...I'll help you out Bob, let me find my "decoder ring" first....
Decoder Ring |
Thanks, I can always count on you. 
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1988 Competition Yellow convertible
Florida muscle car guys click
here
Your Proctologist called, he found your head.
"My dog Minton ate two shuttlecocks yesterday."
"Bad Minton."
Open air box, K & N, Throttle body bypass, Air Foil, AFPR. Brodix heads, Harland Sharp 1.6 roller rockers, Lingenfelter cam, Superram, 2800 stall torque converter, 3:54 rear, Melrose exhaust system, long tube headers, 3" high flow cats, LT1 mufflers. ZR1 rims 17 x 9.5 front with 275's and 17 x 11 rear with 315's |
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11-30-2012, 08:01 PM
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#8
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DC Crew
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Location: Not in Kansas anymore
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1990 383 T400 4 Link 9"
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Quote:
Originally Posted by Bob88
Got a code 36 for a bad or failing mass air flow sensor,
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The MAF burnoff relay ; not the MAF sensor
MAF faults are DTC 33 and 34
Quote:
Originally Posted by Bob88
Is there any way to test them to tell if they are bad???
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http://www.chevythunder.com/maf_code_36.htm
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"Being able to "think outside the box" presupposes you were able to think in it." --Bob Lutz |
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12-01-2012, 07:10 AM
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#9
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DC Crew
Posts: 657
Member #117437
Member since: Aug 2011
Location: Goddard KS
My Corvette(s)
86e w/91 facias soon to be GS replica and now a 90
Thanks: 12
Thanked 21 Times in 20 Posts
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Quote:
Originally Posted by Bob88
Is there any way to test them to tell if they are bad???
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IIRC the MAF relays and fan relays are the same so you could pull the fan relays and swap them then start the car and see if the same symptoms are there. If gone then replace. The other way is to use a VOM and probe for output. They are fairly cheap. I usually replace all when one goes bad, Quick and easy to replace when compared to the downtime and inconvience to fix one at a time. If one goes bad then the others are usually not far behind. 20 + years on a relay isnt too bad imo. 
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