Editing Forums/Z31P/z31-repairs-forums engine-mechanical/New to the Z31… first problem

{{ForumImport
|op_user=turboz32
|op_date=2008-04-27 17:23:30
|post_count=18
|archive_url=/Z31performance_archive/forum/z31-repairs-forums/engine-mechanical/4786-new-to-the-z31-first-problem.html
}}

'''turboz32:''' <small>(2008-04-27 17:23:30)</small>

Hey, I just got an 86 N/A and have already run into my first problem. it wont start…

okay, here are the known facts

it cranks over

the plugs, distributor and cap, wires are all new and it is getting fuel

any common things to check?

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'''Guest:''' <small>(2008-04-27 17:34:00)</small>

did it start when you got it?

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'''turboz32:''' <small>(2008-04-27 17:34:49)</small>

just got it yesterday… no it did not start

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'''Guest:''' <small>(2008-04-27 17:39:23)</small>

check the fuses and relays to.

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'''turboz32:''' <small>(2008-04-27 17:40:02)</small>

is there a way to make the ECU throw codes like in the Z32? or some type of self diagnostics?

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'''Guest:''' <small>(2008-04-27 17:44:16)</small>

get a haynes manual.

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'''FlawleZ:''' <small>(2008-04-27 18:03:00)</small>

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Yes. The ECU's came with a label from the factory with the codes printed on it. You can run the self diagnostics just as the Z32.

Check your ignition coil. Pull all of your wires and confirm you're getting spark. If you're getting spark and fuel, it's possibly the ECU. You said a new distributor, but did you mean cap/rotor or an entire new distributor?

Run codes. If you don't have a Haynes and/or your sticker is no longer on your ECU, they break down like this:

Code 11 - Crank Angle Sensor

Code 12 - Air Flow Meter

Code 13 - Cylinder Head Temperature Sensor

Code 14 - Speed Sensor

Code 21 - Ignition Signal

Code 22 - Fuel Pump

Code 23 - Idle Switch

Code 24 - Nuetral Switch

Code 31 - Air Conditioner

Code 32 - Start Signal

Code 34 - Detonation Sensor

Code 41 - Fuel Temperature Sensor

Code 44 - OK

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'''turboz32:''' <small>(2008-04-27 19:27:10)</small>

{{Quote|user=|}}

It has new plugs, cap, rotor, crank sensor, and coil. I also have a Haynes manual for it.

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'''xenonxiii:''' <small>(2008-04-28 00:52:07)</small>

[http://www.xenonz31.com/ECUcodes.html http://www.xenonz31.com/ECUcodes.html]

Here is how to run them on the Z31

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'''simply86T:''' <small>(2008-04-28 15:40:41)</small>

check compression if all else fail

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'''Eyspire:''' <small>(2008-04-30 08:22:33)</small>

I have a similar reoccuring issue. I try to start the car - it'll crank and crank and crank. Fuel pump primes, starter motor seems fine, then I have to take the distributor cap off and poke around, and usually by the time I put it back to together, it'll start ok. Other times not. So it's an intermittant problem that really gets on my nerves. Expecially when it happens at a gas station.

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'''Guest:''' <small>(2008-04-30 08:42:46)</small>

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check the ground wires in the engine bay. i had a bad ground and it fried 2 dists. fixed it its been fine ever since.

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'''turboz32:''' <small>(2008-05-08 00:00:16)</small>

okay, so I got it to start for about 45 sec. drove it about 300-400 ft and it died. I ran the codes and it says MAF, AC, CAS checked the MAF, no problems… cant for the life of me find the CAS though… and as for the AC, im not too worried about it.

so my new question is… where is the crank angle sensor?

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'''Guest:''' <small>(2008-05-08 00:18:10)</small>

the cas is built into the dist.

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'''turboz32:''' <small>(2008-05-08 02:28:24)</small>

hmmm… took the dist. apart today, everything looked new as the PO said it was. Assuming the plug on the bottom is what connects to the CAS?

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'''Amadeus:''' <small>(2008-06-04 05:22:54)</small>

Check to make sure that your Engine management fuse in your fuse box isn't loose. If it is it won't send a signal to your coil which won't allow your car to start. Because that's what was wrong with mine when it acted like what you where describing. Had to follow the wires back from the distributor to the fuse box and found out that one of the connectors for that fuse wasn't making a good connection.

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'''FlawleZ:''' <small>(2008-06-04 21:17:49)</small>

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Yes, the plug on the bottom of the distributor is what plugs into the CAS itself. You can remove this from the distributor and replace it. It's ~$300ish new depending on where you get it. When the CAS goes out, it throws multiple codes, so its very likely that's the root of your problem.

If you can't find a used one locally I have one that worked fine when pulled I can ship to you.

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'''baulkin:''' <small>(2008-06-04 21:31:47)</small>

chts or ecu

check this out : http://z31performance.com/forum/vie … php?t=9333