sr20det runing problems with codes... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

teamitr · 03-26-2009, 03:26 PM

so the engine is installed on an s13. the engine will turn on but not smooth and will sometimes backfire, i have checked and searched online with no luck, im getting codes 11,12,13, and 21. i know what they mean but dont know were to start, are all those components bad? or is it something else... Thanks.

slider2828 · 03-26-2009, 03:39 PM

lol... bad or your wiring sucks.... I think Jim Wolfe Technology has a list of codes for the SR.... but that is not good...

opponheimer · 03-26-2009, 05:46 PM

You either have a fucked up harness or don't have things plugged in or fucked your own harness up. When you're doing a wiring job you only have to extend the mafs, don't have to touch the CAS wiring, ETC wiring etc... so these are what you need to do:

1. Check ECU plug for being warped
2. Open ECU check if plug leads have snapped.
3. Unplug and Replug all connections. You might also have a key grounds missing.
4. Test somone elses ECU or have your vendor replace it free of charge.
5. Have harness examined (by me

(me "soliciting"))

11 Crank Angle Sensor
12 Mass Air Flow Sensor
13 ECT Sensor
21 Ignition Signal Circuit

teamitr · 03-26-2009, 09:22 PM

So I swapped out the ecu and now I only get the codes 12 and 13, the car is runing really rich but maybe is because of the walbro pump... But i don't think that would cause does codes... also the 02 wires are not hooked up, Just incase that would have something to do with the codes.
Oh and my rpm gauge does not work, do i need to get a doch gauge cluster?

Homer_Simpson · 03-26-2009, 11:35 PM

Check your wiring like the guys above suggested yet?

lightsource · 03-27-2009, 01:55 AM

Quote:

Originally Posted by teamitr

So I swapped out the ecu and now I only get the codes 12 and 13, the car is runing really rich but maybe is because of the walbro pump... But i don't think that would cause does codes... also the 02 wires are not hooked up, Just incase that would have something to do with the codes.
Oh and my rpm gauge does not work, do i need to get a doch gauge cluster?

I think you not having your 02 wires connected is getting you rich fumes. And I'm not that knowledgeable but I think your 02 sensor is ALWAYS supposed to be connected for the car to perform...at all or correctly.

Yes, DOHC Gauge Cluster.

03-26-2009, 03:26 PM	#1
teamitr Join Date: Apr 2008 Location: Riverside Age: 40 Posts: 3 Trader Rating: (0) Feedback Score: 0 reviews	sr20det runing problems with codes... so the engine is installed on an s13. the engine will turn on but not smooth and will sometimes backfire, i have checked and searched online with no luck, im getting codes 11,12,13, and 21. i know what they mean but dont know were to start, are all those components bad? or is it something else... Thanks.

03-26-2009, 03:39 PM	#2
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 6,040 Trader Rating: (13) Feedback Score: 13 reviews	lol... bad or your wiring sucks.... I think Jim Wolfe Technology has a list of codes for the SR.... but that is not good... __________________ Turn and Burn!

03-26-2009, 05:46 PM	#3
opponheimer Zilvia FREAK! Join Date: Apr 2007 Location: Bikini Atoll Posts: 1,267 Trader Rating: (3) Feedback Score: 3 reviews	You either have a fucked up harness or don't have things plugged in or fucked your own harness up. When you're doing a wiring job you only have to extend the mafs, don't have to touch the CAS wiring, ETC wiring etc... so these are what you need to do: 1. Check ECU plug for being warped 2. Open ECU check if plug leads have snapped. 3. Unplug and Replug all connections. You might also have a key grounds missing. 4. Test somone elses ECU or have your vendor replace it free of charge. 5. Have harness examined (by me (me "soliciting")) 11 Crank Angle Sensor 12 Mass Air Flow Sensor 13 ECT Sensor 21 Ignition Signal Circuit __________________ SR20 & RB20/25/26 in s13/s14 Wiring from $125 to $200.. Best prices EVER.

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03-26-2009, 09:22 PM	#4
teamitr Join Date: Apr 2008 Location: Riverside Age: 40 Posts: 3 Trader Rating: (0) Feedback Score: 0 reviews	So I swapped out the ecu and now I only get the codes 12 and 13, the car is runing really rich but maybe is because of the walbro pump... But i don't think that would cause does codes... also the 02 wires are not hooked up, Just incase that would have something to do with the codes. Oh and my rpm gauge does not work, do i need to get a doch gauge cluster?

03-26-2009, 11:35 PM	#5
Homer_Simpson Zilvia Addict Join Date: Jun 2008 Location: Back in the Bay! Posts: 619 Trader Rating: (11) Feedback Score: 11 reviews	Check your wiring like the guys above suggested yet?