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View Full Version : Weird Sr20 Ignition Problem

rednerd
08-06-2003, 09:23 PM
My Sr20det project has yet to run :( I get spark on cylinder #1 and that is it. The computer doesn't fire the other plugs (no signal to the ignitor).

The ignitor is good, all four coils are good, and the computer doesn't pull a code for a bad cam sensor. I have checked the cam sensor and it looks good, though I don't have a scope to see the exact wave form that it is putting out.

Can anyone tell me if they have seen this problem before. Bad ecu?!$$$$$

Thanks,
Jon

PS - The computer pull codes 55 (computer okay) and 21 (coils not firing).
Fibercus
08-07-2003, 01:17 AM
I thought code 55 = Consult (hook up)
fast-datsun
08-08-2003, 05:58 PM
What is the large number on the computer 62--63---or 60 ????
60 is a NA computer
63 is DET automatic
62 is DET 5spd...

Mack
rednerd
08-08-2003, 06:53 PM
It is a 62.

BTW - Only the number one fuel injecter is firing as well.

I did check the cam sensor according to the procedure in the nissan service manual with a digital multimer and both the triggers are putting out voltage between .1 and 5 volts.

I picked up an extra ecu off ebay, so I'm going to take another stab at getting it going tomorrow.

If it doesn't work I'm going to take the cam sensor off the car and put it on an o-scope to see what kind of curve it is putting out.

Jon
rednerd
08-09-2003, 10:02 AM
It RUNS!!!!!! It looks like it was the ecu. :-)

Jon