 HELP! Error code #54 and weird behaviour, (after an engine swap) |
 Nov 8, 2005 - 4:21 AM
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Enthusiast Joined Nov 7, '05 From Germany Currently Offline Reputation: 0 (0%)  |
Hello,
I'm in desperate need for help! Those who know error code #54 will know how troublesome it can be. Here's the situation: JDM ST205 3S-GTE Gen. 3 with a European ST205 ECU integrated into a Corolla E11. All five wires are connected to the pump like Toyota did it. Three wires connected to the other two - one on red, two on black. It seems to be the right combination because in other combinations the problem is much worse. (No pump control at all I think.) When the engine is started, the ECU can control the pump, but it doesn't simply switch it off after 30 seconds without throttle activity. What happens is this: - Engine started - Pump runs for very short time or not at all (0-2 seconds) - Pump switches off - Now when the throttle is opened (once or for a longer time, doesn't matter), the pump is activated for 4-5 seconds - Pump switches off and engine control light is on -> error code #54 - Light goes away after engine is stopped and restarted By now the mechanic will also have tried to bridge the connector to the water level sensor to ensure that this is not the cause. He used two different pumps (Toyota OEM and a compact one), but that didn't change anything. I hope my ECU wasn't damaged during testing, but it's said ECUs don't break that easily. |
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Replies
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Nov 9, 2005 - 10:19 AM
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 Moderator  Joined Apr 17, '03 From Rockland NY Currently Offline Reputation: 15 (100%) |
Ground the wire on the main ECU, find a new full time power source for the pump.
Dont even bother with the water level sensor. After swaping you lost all stock functionality of your intercooler ECU. So now it needs to be controlled manually. Bridging the connections on the water level sensor only works on stock 205's, not swapped cars. good luck DEF --------------------  I will return one day. |
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Nov 9, 2005 - 10:29 AM
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 Enthusiast Joined Oct 10, '03 From Wichita, KS Currently Offline Reputation: 5 (100%) |
QUOTE(defgeph @ Nov 9, 2005 - 9:19 AM) Ground the wire on the main ECU, find a new full time power source for the pump. Dont even bother with the water level sensor. After swaping you lost all stock functionality of your intercooler ECU. So now it needs to be controlled manually. Bridging the connections on the water level sensor only works on stock 205's, not swapped cars. good luck DEF [right][snapback]354943[/snapback][/right] I thought the ST205s didn't have an Intercooler ECU. It looks like it was all combined into the main ECU. MTT, M+, and M-, aren't on the ST185RC computer. INT and LEV are the only two that the RC and ST205 have in common. 
This post has been edited by WannabeGT4: Nov 9, 2005 - 10:38 AM --------------------  Project ST204.5 99.88946% complete... |
Posts in this topic
Hardy HELP! Error code #54 and weird behaviour Nov 8, 2005 - 4:21 AM
Dr_Tweak Sounds like your mechanic needs to learn how to re... Nov 8, 2005 - 5:09 AM Hardy Well, at least I'm told that with code #54 the... Nov 8, 2005 - 2:22 PM defgeph Wire up the pump to run constantly, then ground on... Nov 8, 2005 - 5:39 PM Hardy I couldn't find the thread.
You mean, there... Nov 8, 2005 - 7:00 PM WannabeGT4 http://www.6gc.net/forums/index.php?showtopic=2963... Nov 8, 2005 - 7:17 PM Hardy @DEF
Are you referring to the intercooler ECU of t... Nov 9, 2005 - 2:59 AM
defgeph You're probably right. but during a swap some... Nov 9, 2005 - 10:55 AM Hardy By the way... Here's a picture - in case you w... Nov 9, 2005 - 2:36 PM djr97 boah, der hardy kann auch englisch
welcome... Nov 9, 2005 - 2:58 PM Hardy Sieh an! Wen man so alles trifft. Gut, daß i... Nov 9, 2005 - 3:30 PM
lagos looks awesome Nov 9, 2005 - 11:00 PM |
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