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RX saga continues
Posted 05 December 2003 - 06:59 AM
So far i have fixed and checked the aux air valve, the EGR valve, cleaned out the disty, tested the temp sensor (the resistence varies with temp, and it gets 5 volts), the knock sensor works (even tho its only a single wire job when it should be the earlier 2-wire - I tested it SKIP, and wow, it DOES actually knock back the timing). Fuel pump has had output and pressure checked, I pulled all the lifters and freed and cleaned and primed them. Phew! I know i need a decent exhaust but there is an intermittency to the problem so it cant just be a clogged cat. O2 sensor is new and seems to work.
DAMN DAMN DAMN - anyone have a clue? I want the girl to sing as she should.
Posted 05 December 2003 - 10:46 AM
I can't remember what year/fuel system you have.
IF it is a hot wire MAF system, have you swapped ignition amplifiers?
Have you any where to get another MAF unit, this unit sounds highly suspect after all you have outlined.
That baby should fly
Posted 05 December 2003 - 10:24 PM
Posted 06 December 2003 - 08:40 AM
Can you borrow one? Atleast take it off and feel it swing open and closed. Many people have been known to mess with the return spring in these to "fattin' " the mixture. Maybe the return spring is sprung. Hope this helps
Posted 07 December 2003 - 01:28 AM
not checked outputs yet tho
need a decent meter
Posted 07 December 2003 - 02:44 AM
is the ecu known good?
well I'm sure much of this is redundant but give it a try.
Posted 07 December 2003 - 03:35 AM
I have a spare 85-86 MAF, but shipping would be a killer...
Posted 07 December 2003 - 08:37 AM
PS - when using a timing light, is it normal for the strobe to flash at an intermittent rate? ie not firing every ignition cycle? I'm wondering if the leads are right resistance.
Posted 07 December 2003 - 08:40 AM
Posted 07 December 2003 - 09:07 AM
The intermitant strobe flash of the timing light could be a sign the ingitor in the disty is going or the knock control unit is supressing the spark voltage. What does the spark off the coil wire when cranking look like?
Have you checked the connections on the ends of the fusible links lately? Tha alternater output goes through the link closest to the strut tower, I say this in reference to the remark about the headlights. If we are loosing some charging juice possibly the coil primeray is not seeing the voltage it needs.
Your coil does not have the ignition amplifier on it's bracket so it does not need to be earthed.
This is not ruling out a faulty ground connection somewhere.
On hot wire cars the dash ground is under the intake manifold bolt just behind the upper rad hose connection, another important ground point is the screw by the battery in the rad. core support.
These intermittant problems can certianly be buggers to track down.
Posted 07 December 2003 - 11:42 AM
Posted 07 December 2003 - 04:48 PM
Posted 08 December 2003 - 04:59 AM
Posted 08 December 2003 - 05:00 AM
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