Weird flatspot at 4600rpm, can't 'break through' it in 4th |
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Weird flatspot at 4600rpm, can't 'break through' it in 4th |
nebreitling |
Aug 7 2003, 07:11 PM
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#1
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Member Emeritus Group: Members Posts: 3,314 Joined: 26-March 03 From: San Francisco Member No.: 478 |
hi all
i've discovered a weird ignition/fuel system quirk in my '75 2.0, which has probably been going on since i've owned it (3 months) -- just haven't noticed it. the engine has a flatspot at ~4600rpm -- it feels like the fuel cuts in and out to keep the engine below this speed. now, i can 'break through' it in 1st --> 3rd gear, it just pauses and stumbles a bit at 4600, then moves merrily along toward redline. but in 4th (and 5th, i presume), it feels like i don't have enough power/momentum to 'break through it'. 2 months ago, car had a full tune up, valves adjusted, etc. airpump removed, air injector jets plugged. aside from this quirk, it runs smoothly and strong. does anyone have suggestions for things to check? (IMG:style_emoticons/default/confused24.gif) nathan |
Howard |
Aug 7 2003, 08:17 PM
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#2
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Incontin(g)ent Member Group: Benefactors Posts: 5,785 Joined: 24-July 03 From: Westlake Village, CA Member No.: 943 Region Association: None |
What a great group. And psychic! I was just about to post the same question about my 73 2.0. Have ordered the DIY manuals but not here yet. Where is the TPS and how can it be bypassed for testing?
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