How to fix AFM problem alerted by SST malfunction code?
#1
Full Member
Thread Starter
How to fix AFM problem alerted by SST malfunction code?
My car is a 1991 coupe NA
APEXI POWER INTAKE (connecting to AFM)
2.5'' catback exhaust single exit
Car has a popping sound during idle and I think it's a problem with AFM because when I put my silencer in the exhaust (simple funnel shaped) the popping sound becomes much more subtle, harder to hear. The possible source of this popping sound was alerted to me with several Malfunction (SST) tests which showed only "Ignition coil Trailing side" and "AFM" to be problems.
APEXI POWER INTAKE (connecting to AFM)
2.5'' catback exhaust single exit
Car has a popping sound during idle and I think it's a problem with AFM because when I put my silencer in the exhaust (simple funnel shaped) the popping sound becomes much more subtle, harder to hear. The possible source of this popping sound was alerted to me with several Malfunction (SST) tests which showed only "Ignition coil Trailing side" and "AFM" to be problems.
#3
Full Member
Thread Starter
Okay, my book says the air flow meter needs special equipment to be read accurately and needs to be taken to a dealer service department. Any chance someone knows the correct voltage for the air flow meter.
#4
Super Raterhater
iTrader: (6)
Join Date: Dec 2001
Location: NY, MA, MI, OR, TX, and now LA or AZ!
Posts: 10,628
Likes: 0
Received 2 Likes
on
2 Posts
Perhaps if you were to check it's calibration, then yes, it would require special equipment. However, you should be able to see if it's within acceptable ranges for fully closed/open using the FSM. The ECU threshold for triggering an error code is roughly 0.41 volts if I recall (this going by the ECU code from memory). It should more or less move from ~0.5v to ~4.75v at full open.
Thread
Thread Starter
Forum
Replies
Last Post
SakeBomb Garage
Group Buy & Product Dev. FD RX-7
8
10-09-15 10:05 PM
Devon300zx
2nd Generation Specific (1986-1992)
15
09-16-15 06:57 AM