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redsfan
User

Aug 23, 2011, 6:04 PM

Post #1 of 8 (1959 views)
Help Needed Sign In

Hi, I have a 1998 Monte Carlo SS with a 3.8L 6cyl. and it has 120,000miles I have a few codes and they are as follows-P0102 MAF circuit low input. Freeze Frame Data- Fuel Sys. 1 CL Calc Load % 0.7 ECT Degrees F -39 STFT B1 % -0.7 LTFT B1 %15.6 MAP [inHg 10.3 Eng. RPM 924 Veh. Speed 0mph MAF (1b/min 0.240 TPS % 0 also code P0108 Sensor High Input and P0118 ECT Circuit High Input. Could someone please help or point me in the right direction, much appreciated


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 23, 2011, 6:43 PM

Post #2 of 8 (1936 views)
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Quote
Degrees F -39


That's a big problem. It indicates open circuit for the temp sensor and it's giving you enough fuel for minus forty degrees.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



redsfan
User

Aug 23, 2011, 7:53 PM

Post #3 of 8 (1927 views)
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Any suggestions, where should I start?


Discretesignals
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Aug 23, 2011, 7:59 PM

Post #4 of 8 (1926 views)
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P0102 MAF circuit low input.
P0108 MAP sensor high voltage
p0118 ECT sensor circuit high voltage

Freeze Frame Data:

Fuel Sys. 1 CLOSED LOOP
Calc Load % 0.7
ECT Degrees F -39
STFT B1 % -0.7
LTFT B1 % 15.6
MAP [inHg 10.3
Eng. RPM 924
Veh. Speed 0mph
MAF (1b/min) or 7.57 g/sec
TPS % 0


0.240 is that TPS voltage?

What is going on with the vehicle? What are the symptoms you are experiencing?

All three of those codes will show up if you unplug the connectors from those sensors with the ignition on or engine running. Make sure those sensors connectors are plugged in and clear your codes. Then see what codes come back.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Aug 23, 2011, 8:02 PM)


redsfan
User

Aug 23, 2011, 8:33 PM

Post #5 of 8 (1916 views)
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Its very hard to start and it will only do about 20 mph


redsfan
User

Aug 23, 2011, 8:45 PM

Post #6 of 8 (1914 views)
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The MAF (1b/min) is 0.240


Discretesignals
Ultimate Carjunky / Moderator
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Aug 24, 2011, 4:45 AM

Post #7 of 8 (1897 views)
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You need to answer these questions if you want figure this out.

Did you make sure that all your sensor connectors are plugged in? Did you clear your codes and see if any come back? Did you replace any thing or make any repairs recently?

You had me confused with the 1b/min. I am sure it means lbs/min not 1b/min. If that is the case, .240 lbs/min is equal to 108.7 grams/minute which equals 1.81 grams/second. 1.81 grams/second at 900 rpm is way too low.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


redsfan
User

Aug 24, 2011, 3:53 PM

Post #8 of 8 (1884 views)
Re: Help Needed Sign In

Ok Im on it now and will get back to you thanx






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