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Montreal914 |
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,600 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California ![]() ![]() |
I've been trying to solve an issue that makes the driving rather unpleasant (IMG:style_emoticons/default/headbang.gif)
I have a 2056 D-Jet that I daily drive. Recently I replaced the fuel filter and since then, the car has developed this behavior which I don't see why it would be related. When I put in first gear and get going, the car doesn't pick up and is bucking. As I progressively press on the pedal, it suddenly picks up and gets going normally. While it's trying to get going, I've noticed that my A/F gauge tends to go lean and out of range. Things that came to my mind: faulty throttle switch which influences the fuel delivery, hence lean. On the TPS, I checked the open/close circuit of the 2 traces with the 10 switches and everything is good. Idle switch kicks in also. I checked the resistance of the whole D-Jet harness on the 25 pin connector at the CPU as suggested by Anders and everything is within range. Replaced the points and adjusted Dwell. Fuel pressure is set at 29psi (analog gauge inline). I swapped the TPS, the CPU, the MPS, the coil without any improvement. I'm running out of ideas... (IMG:style_emoticons/default/sad.gif) Maybe someone has experienced something like this (IMG:style_emoticons/default/confused24.gif) |
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saigon71 |
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#2
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,000 Joined: 1-June 09 From: Dillsburg, PA Member No.: 10,428 Region Association: MidAtlantic Region ![]() ![]() ![]() |
If everything else is good, I suspect your CHT circuit.
Verify that the CHT is tight and seating properly in the cylinder head. If you have a compressor, pull the CHT and blast the hole out with compressed air. I chased my tail for a few months over the summer only to find out there was a piece of debris under the CHT causing an intermittent connection. The CHT itself is easy to test on your kitchen stove using the PBanders site. Let us know what you find out. |
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