More 1.7 D-Jet issues, Please help before I remove it!! |
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More 1.7 D-Jet issues, Please help before I remove it!! |
BK911 |
Dec 7 2007, 07:18 AM
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#1
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Senior Member Group: Members Posts: 672 Joined: 19-February 04 From: Rocky Top, TN Member No.: 1,674 Region Association: None |
One reason I bought this car was because it still had the fuel injection. But now I am getting so frustrated trying to get it to run well, I am considering swapping the FI for carbs. Please help before I switch to carbs!
She runs well cold and hot, but not in-between. She will stall and is very difficult to restart. In fact, I have pushed her out of traffic on several occasions after she stalled at a red light. I wait a couple of minutes and she fires right back up. I have a gunson and have set the CO to 2.5 at idle and 2500 rpm. And again, she runs well once hot. The AAR works. I swapped out the CHT even though the old one tested fine. I am thinking it’s the cold start valve. I disconnected the wire to the CSV last night and reset the CO to 2.5. I went for a ride, came home and shut off the car. Let the gunson calibrate then rechecked the CO. Very lean and wouldn’t run worth a crap. I am thinking I have a leaky CSV. It was leaking when I set the CO and stopped leaking when the car heated up? Can I remove it? How do you plug it? If I just remove the gas lines to it, will it leak air? Is 2.5 a good number for the CO at idle and 2500 rpm? I’d appreciate any help. Please help me keep this car original!! |
BK911 |
Dec 7 2007, 10:08 AM
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#2
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Senior Member Group: Members Posts: 672 Joined: 19-February 04 From: Rocky Top, TN Member No.: 1,674 Region Association: None |
Thanks guys.
I bought the car about a year ago. It had been sitting for a couple of years and had rust in the tank. I por-15'd it, replaced all the fuel lines and filter, and put all the injectors in an ultra sonic cleaner. It ran awesome up until recently. The MPS holds a vacuum. It leaks a little, but it doesn't drop like a rock. The AAV opens and closes. At an AX this weekend I couldn't get the car to start after it had been sitting for about an hour. When she would turn over, I had to keep the pedal to the floor to keep her at idle. I pulled the plugs and they were BLACK! Cleaned them off and was able to do my runs. Pulled the plugs when i got home and they were fine. So something is causing her to run really rich sometimes, usually when warm. The only thing I can think of is the CSV. I think I am going to plug the fuel lines to the CSV and see what happens. Thanks for the offer Jim. I may take you up on it. Let me play around this weekend and I will let you know. |
tdgray |
Dec 7 2007, 12:24 PM
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#3
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Thank God Nemo is not here to see this Group: Members Posts: 9,705 Joined: 5-August 03 From: Akron, OH Member No.: 984 Region Association: None |
The MPS holds a vacuum. It leaks a little, but it doesn't drop like a rock. The AAV opens and closes. Whoa there Hobbes... you just jumped right over that. Quantify that statement... not dropping like a rock is not adequate. Needs to hold certain vac for certain amount of time. Look up Brad Anders site to get specs and to familiarize yourself with the inner workings of D jet before you make a rash decision. Report Back ! |
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