If anyone remembers my bro posting for me on the weekend about my new SHO not throwing any codes... now it's fixed.
Basically the story goes like this. Previous owner states he was driving home from work and it just started to run really rough and buck. He limped it home and it's been sitting since April. It always started but did not run right. He replaced the DIS, cam sensor, CPS, and MAF. The car has been garaged since day one that he's owned it, and it's also been car covered in the garage. This guy was a fanatic, but he could not fix this problem. The WHOLE 60k has been done including the valve lash, new tires, struts, not a tear or crack in the leather, etc. It has a 102k and the guy was asking $1500 for it. I low balled him at $800 and we settled at $900.
So I trailer the car home and tear into it right away. I figure the timing belt has slipped a tooth. I checked it and it was right on par. I started looking to the computer now because when I scanned for codes, nothing was outputted. The KOEO test would not even start. I put in another computer and now the codes would be outputted but now it wouldn't start. (earlier it did though) I immediately thought something with the wiring was messed up because I moved that to hook up the new computer. When I moved the harness I could get the KOEO test to work, and then if I moved it again it would kick out and the test would end. I cut back the insulation around the harness and started to probe the wires for continuity through the harness connector. Everyone was fine but I could not get it to run. I had spark and fuel, but it refused to run. I was stumped. I decided to do the wiggle test on it, and the codes received were 23, 51, and 54. I checked the wiring diagram and saw that the TPS, ACT, and ECT were all on the same circuit. I checked the continuity from the harness to every circuit, but that checked out all good. Now I began to look at the harness itself. I saw that if I moved one wire a certain way the KOEO test would kick out. I cut out the bad portion but things still weren't totally right. If I moved the harness still in various directions, the KOEO test would still dump. I found ANOTHER wires right at the harness connection point that would make the test dump out. I took the connector apart and crimped down on the wire where it plugs into the computer. BINGO! The thing started up and ran perfectly! I have never heard a smoother running engine. I guess the connection at the harness was enough to let voltage go through, but not current.
After 20 hours of electrical diagnosing, one small fire (testing for spark with the plug above the spark plug hole, and the injector firing, do not mix), and my parents yelling at us for not going to church, we finally got it fixed. My $900 dollar SHO has to be worth a ton in the condition it's in. Wait till the guy finds out it cost nothing to fix. thumbs_u
Here are some pics. Check them out and let me know what you all think. Thanks for everyone's help and suggestions.
Sincerely,
Doug and Greg... AKA The SHO Bros
<small>[ October 17, 2002, 07:28 AM: Message edited by: DougLee25 ]</small>
Basically the story goes like this. Previous owner states he was driving home from work and it just started to run really rough and buck. He limped it home and it's been sitting since April. It always started but did not run right. He replaced the DIS, cam sensor, CPS, and MAF. The car has been garaged since day one that he's owned it, and it's also been car covered in the garage. This guy was a fanatic, but he could not fix this problem. The WHOLE 60k has been done including the valve lash, new tires, struts, not a tear or crack in the leather, etc. It has a 102k and the guy was asking $1500 for it. I low balled him at $800 and we settled at $900.
So I trailer the car home and tear into it right away. I figure the timing belt has slipped a tooth. I checked it and it was right on par. I started looking to the computer now because when I scanned for codes, nothing was outputted. The KOEO test would not even start. I put in another computer and now the codes would be outputted but now it wouldn't start. (earlier it did though) I immediately thought something with the wiring was messed up because I moved that to hook up the new computer. When I moved the harness I could get the KOEO test to work, and then if I moved it again it would kick out and the test would end. I cut back the insulation around the harness and started to probe the wires for continuity through the harness connector. Everyone was fine but I could not get it to run. I had spark and fuel, but it refused to run. I was stumped. I decided to do the wiggle test on it, and the codes received were 23, 51, and 54. I checked the wiring diagram and saw that the TPS, ACT, and ECT were all on the same circuit. I checked the continuity from the harness to every circuit, but that checked out all good. Now I began to look at the harness itself. I saw that if I moved one wire a certain way the KOEO test would kick out. I cut out the bad portion but things still weren't totally right. If I moved the harness still in various directions, the KOEO test would still dump. I found ANOTHER wires right at the harness connection point that would make the test dump out. I took the connector apart and crimped down on the wire where it plugs into the computer. BINGO! The thing started up and ran perfectly! I have never heard a smoother running engine. I guess the connection at the harness was enough to let voltage go through, but not current.
After 20 hours of electrical diagnosing, one small fire (testing for spark with the plug above the spark plug hole, and the injector firing, do not mix), and my parents yelling at us for not going to church, we finally got it fixed. My $900 dollar SHO has to be worth a ton in the condition it's in. Wait till the guy finds out it cost nothing to fix. thumbs_u
Here are some pics. Check them out and let me know what you all think. Thanks for everyone's help and suggestions.
Sincerely,
Doug and Greg... AKA The SHO Bros
<small>[ October 17, 2002, 07:28 AM: Message edited by: DougLee25 ]</small>
