Nissan S14 Problem. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Skov · 11-08-2015, 01:38 PM

I was on a rolling road with my newly build sr20det engine, to get it optimized, and it done a good dyno with 340 HP at 1 Bar (Arround 14 PSI), but after 10 min in idle after the dyno, it start making a lumpy idle and at arround 2300rpm it jumps between 1900 rpm and 3000 rpm (The timing jumps between 20 and 70 ), and i got a new error indicator in my cluster.

Do anyone have any ideas ?

I have seen this post, but it don't help me

http://www.sxoc.com/vbb/showthread.p...-Warning-Light

A little about my Car :
Nissan Silvia s14 Zenki (JDM) Year 1994 with SR20DET blacktop
Nissan ECU (WC, red label) with Nistune Type 3 Board

Engine : Stock with arp bolts and HKS Metal head gasket.
Fuel system : Aeromotive STEALTH 340 pump, Aeromotive BYPASS REGULATOR, HKS 740cc injectors
Turbo system : Garrett GT2871R, Apex Type 2 manifold with DEI Wrap, AEM Tru Boost controller, HKS s-Type IC.

*Agamemnon* · 11-09-2015, 12:05 AM

That's your catalytic converter temperature warning light. The ECU goes into a safe mode when this sensor is triggered and will change the idle. You may have over heated it during the dyno runs or it maybe clogged with carbon deposits. It also maybe being affected by the change in air fuel ratios as a result of the dyno tune. Park it until it cools down and drive it like normal and see if the warning light goes off again. If it does, check the converter for deposits.

Skov · 11-09-2015, 12:13 AM

Quote:

Originally Posted by Agamemnon

That's your catalytic converter temperature warning light. The ECU goes into a safe mode when this sensor is triggered and will change the idle. You may have over heated it during the dyno runs or it maybe clogged with carbon deposits. It also maybe being affected by the change in air fuel ratios as a result of the dyno tune. Park it until it cools down and drive it like normal and see if the warning light goes off again. If it does, check the converter for deposits.

The Problem is i don't have any cat on, and the sensor was just stripped up at det bottom, it is now disconnected but it stays on, it was 10 days ago it was on the dyno.

Smurf_240SX · 11-09-2015, 12:34 AM

as he said exhaust temperature.

Skov · 11-09-2015, 01:09 AM

I got no cat on, and the sensor is just stripped up in the bottom of the car, i have disconnected it now, but it don't help :/, i got the battery off in arround 2 hours but with no good result :/

Skov · 11-09-2015, 11:21 PM

I have disconnected the sensor and reset the ECU with nissan data scan and by disconnect the battery, but nothing help.

Skov · 11-11-2015, 12:58 AM

Nissan Data Scan comes up with nothing :s, maybe my ECU is done :/

Skov · 11-24-2015, 11:00 AM

A little video with the error :
https://www.youtube.com/watch?v=LahkSgcPyhA

Sorry for my bad iphone cam, it need repair :S

11-08-2015, 01:38 PM	#1
Skov Join Date: Apr 2013 Location: Denmark Age: 34 Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	Nissan S14 Problem. I was on a rolling road with my newly build sr20det engine, to get it optimized, and it done a good dyno with 340 HP at 1 Bar (Arround 14 PSI), but after 10 min in idle after the dyno, it start making a lumpy idle and at arround 2300rpm it jumps between 1900 rpm and 3000 rpm (The timing jumps between 20 and 70 ), and i got a new error indicator in my cluster. Do anyone have any ideas ? I have seen this post, but it don't help me http://www.sxoc.com/vbb/showthread.p...-Warning-Light A little about my Car : Nissan Silvia s14 Zenki (JDM) Year 1994 with SR20DET blacktop Nissan ECU (WC, red label) with Nistune Type 3 Board Engine : Stock with arp bolts and HKS Metal head gasket. Fuel system : Aeromotive STEALTH 340 pump, Aeromotive BYPASS REGULATOR, HKS 740cc injectors Turbo system : Garrett GT2871R, Apex Type 2 manifold with DEI Wrap, AEM Tru Boost controller, HKS s-Type IC.

11-09-2015, 12:34 AM	#4
Smurf_240SX Zilvia Addict Join Date: Aug 2006 Location: So Cal- I.E Age: 32 Posts: 879 Trader Rating: (9) Feedback Score: 9 reviews	as he said exhaust temperature. __________________ FS OEM RB25 PARTS

11-09-2015, 01:09 AM	#5
Skov Join Date: Apr 2013 Location: Denmark Age: 34 Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	I got no cat on, and the sensor is just stripped up in the bottom of the car, i have disconnected it now, but it don't help :/, i got the battery off in arround 2 hours but with no good result :/ __________________

11-09-2015, 11:21 PM	#6
Skov Join Date: Apr 2013 Location: Denmark Age: 34 Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	I have disconnected the sensor and reset the ECU with nissan data scan and by disconnect the battery, but nothing help. __________________

11-11-2015, 12:58 AM	#7
Skov Join Date: Apr 2013 Location: Denmark Age: 34 Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	Nissan Data Scan comes up with nothing :s, maybe my ECU is done :/ __________________

11-09-2015, 12:05 AM	#2
Agamemnon Premium Member Join Date: Sep 2003 Location: Lake Stevens, WA Age: 38 Posts: 2,585 Trader Rating: (20) Feedback Score: 20 reviews	That's your catalytic converter temperature warning light. The ECU goes into a safe mode when this sensor is triggered and will change the idle. You may have over heated it during the dyno runs or it maybe clogged with carbon deposits. It also maybe being affected by the change in air fuel ratios as a result of the dyno tune. Park it until it cools down and drive it like normal and see if the warning light goes off again. If it does, check the converter for deposits.

11-24-2015, 11:00 AM	#8
Skov Join Date: Apr 2013 Location: Denmark Age: 34 Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	A little video with the error : https://www.youtube.com/watch?v=LahkSgcPyhA Sorry for my bad iphone cam, it need repair :S __________________

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