DIY_EFI Digest V4 #608

[Scott_Hay at notes.toyota.com]

There are a couple of ways to test:
MAP - Apply 5v+ and ground and then apply a vacuum.  Watch the change in the
signal line.  Depending on the type of MAP, the starting reading will vary
depending on your altitude (barometric pressure).  Most start out somewhere
around 4.6-4.9v  w/no vacuum.

A very crude bench test for an o2 sensor is to mount it in a vise  and heat it
with a propane torch.  As it warms up, it will begin to produce a voltage.  Not
very accurate but it will indicate if it is completely dead.





DIY_EFI-Digest-Owner at efi332.eng.ohio-state.edu (DIY_EFI Digest) on 10/28/99
12:00:00 PM

Please respond to diy_efi at efi332.eng.ohio-state.edu

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Subject:  DIY_EFI Digest V4 #608




DIY_EFI Digest       Thursday, October 28 1999       Volume 04 : Number 608



In this issue:

     DIY MAP & O2 Testing?

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----------------------------------------------------------------------

Date: Thu, 28 Oct 1999 08:32:58
From: Bob Tom <tigers at bserv.com>
Subject: DIY MAP & O2 Testing?

Are there DIY ways of testing if a MAP sensor and an O2 sensor
are functioning up to snuff?  Thanks in advance.

Bob.       Southern Ontario, Canada.
'97 FR CC Sport, 5.2L, 3.55 SG, auto.
Racing weight: 4,350lb  ET: 14.934  Trap speed: 90.78 mph

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End of DIY_EFI Digest V4 #608
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