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post #1 of 8 (permalink) Old 08-15-03, 06:52 PM Thread Starter
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91 EGT missing in sharp turns

I have 1 91 EGT with 78000 miles on it. Recently I noticed that while maknig sharp, hard, fast right turns the car seems to miss heavily. It may have been low on gas, and it may do it in left turns, but I havent tried it since filling up and I havent tried doing it turning left. I had just happend to make 3 hard right turns in 2 days with a low tank. I'd come up on a parking lot from a fast road, hit the brakes, turn hard, and get on the gas 1/2 way through the turn, but there was 0 response. I had the gas down, but there was no acceleration and no revving. It feels like it's stalled, but Im not losing electrical power, and the engine is still running. When I straighen out, let off the gas for a split second and get back on it, it is all fine. I should also note that this summer an engine part was broken and not replaced yet as I havent found a replacement. I was told it wouldnt be an issue until winter, so I've taken my time, but I wonder if it may be related to this. Ive heard the part called the low idle step up vale, and idle air control valve, and a few other generic terms. Note that this isn't the Ford engine, rather the Mazda. Any help will be greatly appreciated.

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post #2 of 8 (permalink) Old 08-16-03, 03:33 AM
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Re: 91 EGT missing in sharp turns

Sound like you guessed right and low fuel and tank surge were the problem. Try with a full tank and see.

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post #3 of 8 (permalink) Old 08-17-03, 02:03 AM Thread Starter
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Thanks, and I guess it's good to know that my intuition isn't all that bad. I can't check it right now, as I'm out of town, but I'll try as soon as I get home and post back. Does anyone know which side of the fuel tank the fuel pulls from, or is the pump centered and on the bottom? I guess if that is true and I turned sharply enough with a really low fuel situation, then the remaining fuel would pool in the corner and the pump couldnt suck anything. I would think, however, that the fumes and even the fuel en-route via the fuel lines would be enough to feed the engine while turning, as the entire turn takes only 3-4 seconds... if that. I am also having an issue with a very erratic fuel guage. When it's full, it will remain full on the guage for appx. 100 miles. Then it quickly drops to 3/4 full. Within 50 miles it will read nearly empty and swing back and forth from empty to 1/2 full until it is at appx 350 miles, and then stay near empty until I run out at 375/400 depending on how I've been driving. Could this issue be related somehow as well, or is it a sticky float and pretty much not fixable unless I want to spend a lot of time and/or money on it?
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post #4 of 8 (permalink) Old 08-17-03, 02:07 AM
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It may be the filter sock on the fuel pump pick up clogged in the tank.
Same thing was happening to mine when cold or driving hard.

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post #5 of 8 (permalink) Old 08-17-03, 03:21 AM
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Re: 91 EGT missing in sharp turns

Check electrical connections,could be bad earth.As guage maybe doing the same as pump ???

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post #6 of 8 (permalink) Old 08-17-03, 07:23 AM
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Re: 91 EGT missing in sharp turns

Pump and pick up is on LH side so it fits with your cornering experience.

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post #7 of 8 (permalink) Old 08-17-03, 08:24 PM Thread Starter
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If a bad ground was causing the erratic fuel guage issue, where would I begin to look for this ground connection? I would love to be able to just replace that wire or re-ground it, but I don't know where it would be, or any of the instrument panel wiring for that matter... other than behind the cluster of course.
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post #8 of 8 (permalink) Old 08-17-03, 10:51 PM
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Re: 91 EGT missing in sharp turns

At the sender under the mat in the boot.

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