 More 1.7 D-Jet issues, Please help before I remove it!! |
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| BK911 |
 Dec 7 2007, 07:18 AM
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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!! |
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| 914Sixer |
Dec 7 2007, 07:45 PM
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914 Guru Group: Members Posts: 8,920 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region 
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Check for bad wiring in the harness. Check the continuity from end to end. You may have what we used to call a high joint. Wire sheath gets warm and flows pulling the broken part into. When the sheath cools it will flow back to let the wires touch. It is all under the sheath where you can not see it. Look for knots or limp places in the sheath.
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Posts in this topic
BK911 More 1.7 D-Jet issues Dec 7 2007, 07:18 AM
jimkelly i have one laying around - it is yours free - don... Dec 7 2007, 08:11 AM toon1 It's possible the CSV is leaking BUT unless it... Dec 7 2007, 08:49 AM BK911 Thanks guys.
I bought the car about a year ago. ... Dec 7 2007, 10:08 AM
tdgray
The MPS holds a vacuum. It leaks a little, but... Dec 7 2007, 12:24 PM swl just a couple of thoughts.
if the problem went aw... Dec 7 2007, 12:38 PM BK911 When a vacuum is applied to the MPS the gauge drop... Dec 7 2007, 12:41 PM tdgray
When a vacuum is applied to the MPS the gauge dro... Dec 7 2007, 12:45 PM Bleyseng
When a vacuum is applied to the MPS the gauge dro... Dec 8 2007, 10:52 AM BK911 I bypassed the CSV and plugged the connections. N... Dec 8 2007, 04:56 PM brp986s engine vacuum, warm @ idle = ?
fuel pressure at v... Dec 8 2007, 06:32 PM dfwteenerpr how are you adjusting the mixture? if you're j... Dec 8 2007, 09:59 PM jimkelly if it is truely only a mid-range temp related prob... Dec 8 2007, 10:05 PM SirAndy i had similar problems with my 1.7L D-Jet motor. i... Dec 8 2007, 10:11 PM bd1308 if the MPS was leaking, wouldnt it think that the ... Dec 9 2007, 01:43 PM |
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