89 computer add on?
10-20-2018, 12:02 PM
#2
Looks like someone was trying to fix a problem with the computers and instead of getting rebuilt units, they spent a load of time doing this.
10-20-2018, 03:54 PM
#4
Drifting
That looks something like an old Dastek unit and you splice it into the harness like that. It was the pre SharkTuner days.
10-20-2018, 05:28 PM
#6
Drifting
So what is an IMU?
10-20-2018, 06:05 PM
#7
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Inertial Measurement Unit. Typically used in nuclear missiles as part of the inertial navigation system (INS.)
I’m gonna bet that it’s an IMS (Ingnition Monitoring System) relay in that ‘89 that’s been bypassed unless it came out of Russia...
OP: what a mess. Condolences and good luck. I might be considering a used engine harness.
I’m gonna bet that it’s an IMS (Ingnition Monitoring System) relay in that ‘89 that’s been bypassed unless it came out of Russia...
OP: what a mess. Condolences and good luck. I might be considering a used engine harness.
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10-20-2018, 09:22 PM
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It doesn't really matter if we call it a Unit or a System IMU or IMS, and it sure doesn't matter to the OP, but on Rennlist it is usually referred to as the IMS relay and thus searching for IMS finds threads. I doubt searching for IMU finds much.
10-21-2018, 03:56 AM
#10
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10-21-2018, 07:36 AM
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10-21-2018, 11:04 AM
#12
Team Owner
Hey Bob please add more details about the car you bought what model and trans type,
who was the PO?
What are the running conditions of the engine now?
Pictures are always good
Thanks
who was the PO?
What are the running conditions of the engine now?
Pictures are always good
Thanks
10-22-2018, 06:41 AM
#13
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I remember those things. If I understand them correctly they modify input signals to "fool" the LH and EZ units into thinking something else is going on and thus modify the output. Knowing what I know nowadays after using ST2 I doubt that they can do much of any meaning other than for high output motors wherein they could no longer read the airflow beyond a certain input voltage from the MAF.
As to what such item could do for a stock motor is beyond me..
10-22-2018, 09:24 AM
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10-22-2018, 10:01 AM
#15
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I would think rehabilitation should be straightforward. I managed to rehabilitate my doggy looking MAF connection a few years ago and that seems to work fine so I would think re-working those points of interconnection should be just as feasible. I used crimp connectors with integral heat shrink in the engine bay but in the footwell the heat shrink feature is not really needed. Alternatively a soldered connection with some heat shrink overlay could be used- not too difficult I suspect.