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  #1  
Old June 4th, 2014, 03:15 PM
wesley0620
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Wesley Everett
1994 Defender 90
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94 Defender flooding


Jun 2 at 12:40 PM
I have a 1994 Defender 90 with a starting problem. When cranking in the morning the engine will spin without cranking, after about 30-45 seconds it will fire (apparently only on one or two cyls) continuing cranking and it will eventually run on all 8 cyls and when it does crank it will blow a dark gray smoke for about 3-4 seconds. At that point the engine will run seemingly well and if you crank it about every hour or so it will crank up, however if it sits for 4-5 hours the same thing occurs. To this point I have changed the plugs, wires, cap and rotor and the fuel pump. This Rover has only 76000 miles and has been serviced. I have gotten to the diagnostic display and there are no codes and the check engine light is not activated. After changing all the parts and still having the same problem, I pulled the plugs and checked for good spark at the plug, (good spark there) but the plugs were all black and wet and smelling of gas so apparently it is flooding the cyls with too much gas. Has anyone ran across something like this? One more thing I removed the IAC (not sure if that is what it is called in Rover language) and cleaned and reinstalled, no help there then while it was running, I pulled the electrical connection from the IAC and the engine didn't change NOR did the check engine light come on even though the connection was off. I am a mechanic but I need technical advice.
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  #2  
Old June 4th, 2014, 03:26 PM
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down_shift
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Russell
94' D90 ST & 06' LR3
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Read these threads to see if they help:
http://www.defendersource.com/forum/...ead.php?t=7619

http://www.defendersource.com/forum/...ad.php?t=10950
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  #3  
Old June 4th, 2014, 04:31 PM
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sonoronos
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injectors?
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  #4  
Old June 4th, 2014, 05:25 PM
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evilfij
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evilfij
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I have seen this twice. Once was water in the ECU causing injectors to fire and flood the engine. The other time it was multiple leaking injectors. I would check the ECU first. It could be other things too.
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  #5  
Old June 5th, 2014, 01:09 PM
wesley0620
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Wesley Everett
1994 Defender 90
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After checking for wet ECU I began to look for the temp sensor that signals the ECU, there is nothing plugged into that sensor. Front of engine near thermostat, no wires that had been unplugged, just two male prongs sticking out. This D90 had been running fine without that connection. Still stumped about no code shown or check engine light.
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Old June 5th, 2014, 01:40 PM
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Quote:
Originally Posted by wesley0620 View Post
After checking for wet ECU I began to look for the temp sensor that signals the ECU, there is nothing plugged into that sensor. Front of engine near thermostat, no wires that had been unplugged, just two male prongs sticking out. This D90 had been running fine without that connection. Still stumped about no code shown or check engine light.
One temp sensor is for the AC so if you dont have AC it would not be hooked up.
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  #7  
Old June 5th, 2014, 01:46 PM
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rijosho
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Joshua
1995 Black ST - Rhinolined edition
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when mine was flooding it was a timing issue. Not sure if you somehow adjusted it and just forgot you had, but just in case it jogs your memory of something you may have changed.
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  #8  
Old June 5th, 2014, 02:37 PM
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George
1995 D90 #2904 - BB
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Quote:
Originally Posted by down_shift View Post
Read these threads to see if they help:
http://www.defendersource.com/forum/...ead.php?t=7619
+1

Definitely put this high on your list.
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