91 map sensor diagnostic
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Joined: Apr 2000
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From: Acapulco Guerrero
91 map sensor diagnostic
Hi,
Please help me with this
I stored my 91 some years and i found that several sensor are not working properly , i replaced some.
I have scanner and i can read the values
Could some body please let me know how can i diagnose if the map values are correct ?
I don have leaks at intake, yesterday i have an error code map high, this is caused by leaks or faulty map
But car runs normal
I double check vacuum hoses and evrything is correct, i recently installed bigmouth intake and siamese runners and i replaced vacuum hoses.
Then i want to check the map sensor values
Thanks in advance
Please help me with this
I stored my 91 some years and i found that several sensor are not working properly , i replaced some.
I have scanner and i can read the values
Could some body please let me know how can i diagnose if the map values are correct ?
I don have leaks at intake, yesterday i have an error code map high, this is caused by leaks or faulty map
But car runs normal
I double check vacuum hoses and evrything is correct, i recently installed bigmouth intake and siamese runners and i replaced vacuum hoses.
Then i want to check the map sensor values
Thanks in advance
Last edited by Eduardo L98 1991; Jun 22, 2017 at 08:07 PM. Reason: Mispell
Safety Car
Joined: Sep 2001
Posts: 4,134
Likes: 531
From: Glenbeulah Wi
When you turn the key on engine not running the MAP sensor should be reading near 100 KPA. Then when you start the car and let it idle it should be reading near 40 KPA. It will move around with RPM and throttle position changes.
