2.0 Djet problem, Will not take gas. Idles fine |
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2.0 Djet problem, Will not take gas. Idles fine |
benalishhero |
Mar 15 2012, 01:09 PM
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#1
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Member Group: Members Posts: 313 Joined: 28-November 07 From: Portland, Maine Member No.: 8,384 Region Association: North East States |
Hey guys, I thought I'd pick your brains on this one. If you could knock some ideas around that would be great. I'm stuck on this one.
First off, all the baseline stuff is in order. e.g. valves, ignition, fuel pressure, vacuum etc.. The motor starts fine cold or warm, and idles fine. However it will not take gas off a stop. It will go with about 1/4 throttle if I feather it. If I punch it immediately it dies. I can also, if up to a fair speed, full throttle it(through the bog) and back it off just a bit and it will take off. Basically it's fine at idle and at full enrich. I'm suspecting a dead-spot in the TPS. (IMG:style_emoticons/default/confused24.gif). Can a bad CHT cause poor acceleration? Enjoy the day Thomas |
Prospectfarms |
Mar 17 2012, 10:02 PM
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#2
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Member Group: Members Posts: 495 Joined: 7-March 11 From: Louisville, KY Member No.: 12,801 Region Association: Upper MidWest |
Sorry to jump in late, but I'm curious. Did the timing advance under throttle when you set is? Doing that with a light would be an easy way to double check advance plate operation.
I'd think you could tell if it's running too rich and say the plugs looked good so maybe not CHT. No midrange can also be symptom of lean AFM. I assume this is true of d-jet. If distributor checks out, I'd get the car to idle, then start pulling FI things off-line. like the AAR, decal valve, TPS, cold start valve, temp 2, etc. Plug the vac lines as you go. Notice the RPM's and check the throttle response along the way. I've run my 1.7 with only MPS and CHT. If nothing else, you'll eliminate those circuits from suspicion. I did this a lot last year when reviving an unknown motor and it helps. |
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