Cleaned IACV now my SC400 won't start
12-07-12, 09:51 PM
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Cleaned IACV now my SC400 won't start
I've got a 1992 sc400. Before I went and cleaned the IACV the car ran fine. Now after cleaning it the car cranks and sounds like its trying to start but immediately dies. There's also a strong smell of gas. I figured I fouled the plugs so I pulled them (yep, they were covered in gas) and replaced them but still no difference. I checked for loose vacuum tubes (that doesn't seem to be the problem). Did I ***** over the IACV by spraying it with throttle body cleaner? I sprayed the entire thing including the nipple part and then cleaned it carefully with a brush. I made sure it was dry afterwards and let it sit overnight just to be sure. Anybody deal with anything like this before? I'd appreciate any advice you guys can offer! And yes, I used the search function but couldn't find a solution to an issue like mine!
Last edited by 86'ed; 12-07-12 at 10:05 PM.
12-08-12, 07:40 AM
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https://www.clublexus.com/forums/per...ont-start.html
IMO The IACV wouldn't hinder the car from starting, but you never know... Read this thread^^^ GL!
IMO The IACV wouldn't hinder the car from starting, but you never know... Read this thread^^^ GL!
12-08-12, 10:35 AM
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https://www.clublexus.com/forums/per...ont-start.html
IMO The IACV wouldn't hinder the car from starting, but you never know... Read this thread^^^ GL!
IMO The IACV wouldn't hinder the car from starting, but you never know... Read this thread^^^ GL!
12-08-12, 11:39 AM
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Yes, it turns over but just dies! I checked for codes using the paperclip trick and pulled a code 15 and 24! Before I cleaned my IACV she ran great! I'll check the TPS... Thanks! Did you get any CEL's after you cleaned yours and it wouldn't start? Anyone know what could cause codes 15 and 24 after cleaning IACV? I appreciate the input guys!
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12-08-12, 03:12 PM
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Did you rememeber to plug the connector back in? I know it seems obvious but I have done far worse in trying to figure things out. It does seem unlikely you would have a tps issue at the same time...just saying
12-08-12, 04:07 PM
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Well 41 is TPS 24 is intake air temp. Make sure MAf sensor is plugged in tight. Also when I pulled my IACV I had to move a lot of crap around. Check your coil connection.
https://www.clublexus.com/forums/es3...ght-codes.html
https://www.clublexus.com/forums/es3...ght-codes.html
12-10-12, 06:47 AM
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Well 41 is TPS 24 is intake air temp. Make sure MAf sensor is plugged in tight. Also when I pulled my IACV I had to move a lot of crap around. Check your coil connection.
https://www.clublexus.com/forums/es3...ght-codes.html
https://www.clublexus.com/forums/es3...ght-codes.html
12-10-12, 07:00 AM
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Don't know if this could have caused any issues but I sprayed some CRC electrical connection cleaner in the connector that plugs into the IACV but forgot to remove the battery terminal first! Ya, pretty stupid! I know! Could that have fried anything?
Also, on other note, if I killed my IACV from cleaning it improperly (if that can even be done) would that cause my car to not start up?
I'm getting a code 15 as well (ignition signal... I think!?!) what all is associated with that?
Lots of questions I know, but I really appreciate you guys @ CL! I'd be lost without y'all!
Also, on other note, if I killed my IACV from cleaning it improperly (if that can even be done) would that cause my car to not start up?
I'm getting a code 15 as well (ignition signal... I think!?!) what all is associated with that?
Lots of questions I know, but I really appreciate you guys @ CL! I'd be lost without y'all!
12-11-12, 06:13 AM
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86'ed, if you haven't already done this then I would disconnect the battery for 30 minutes to clear the codes. Then. Try and crank the car again. Now check for codes and see what comes up.
The first time I checked for codes after I got my car It had about 5 problems. After I did the reset I only had one and was able to diagnose and fix my problem.
The first time I checked for codes after I got my car It had about 5 problems. After I did the reset I only had one and was able to diagnose and fix my problem.
12-11-12, 08:04 AM
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86'ed, if you haven't already done this then I would disconnect the battery for 30 minutes to clear the codes. Then. Try and crank the car again. Now check for codes and see what comes up.
The first time I checked for codes after I got my car It had about 5 problems. After I did the reset I only had one and was able to diagnose and fix my problem.
The first time I checked for codes after I got my car It had about 5 problems. After I did the reset I only had one and was able to diagnose and fix my problem.