Question about 1987 Honda Prelude

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My prelude wiil not accelerate past 30 to 40 miles per hour, starts fine, idles fine run fine beloww about 30 or 40 mikles per hour, does not really miss but will not accelerat past 30 or 40

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Generally the symptoms say the catalytic converter is clogged, you can't get any air out so you can't pull any air in, and the age of the vehicle says so too. Look and see if it has ever been replaced.

Posted on Nov 14, 2009

Testimonial: "sounds like the problem, we will check it out and post the results, Thanks, Stacy"

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What RPMS is the car at, did you have a timing belt change recently. If your timming is off you will notice your RPMs stuck at a lower RPM and a lower speed for the car and you will also notice a lot more gas being used.

Posted on Jan 12, 2010

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1 Answer

High idle and transmission catches at about 8 miles per hour every time after I stop and then accelerate catches really hard then runs fine high idle in park


may be a faulty tps (throttle position sensor)

would check the idle speed sensor at the same time

if no better
solenoids on the transmission

Nov 23, 2016 | Cars & Trucks

1 Answer

My car slowly stalled and will not accelerate past 20 miles per hour. The engine light started blinking.


it is in limp mode
run the fault codes to find the problem, fix the problem then reset the ECM using a scan tool

Apr 28, 2016 | Cars & Trucks

1 Answer

Engine backfires when accelerating, idles rough but runs fine over 50+ miles per hour.


Idle is rough because not a right Air/ Gas mixture.
The ideal air /gas ratio is 14.6:1. If less than that it has rich mixture. If it more then that it has a lean mixture.
Back fire happens when accelerated because of of rich mixture pumped out at exhaust cycle is burning.
At speed above 40 miles/hour, temperature and fast compression cycle make the problem is less obvious.
Cheap first shot is to replace the air filter to correct this ratio. If it doesn't help, need Fuel distributor service. ( However people like to make easy money from you first, they will convince you for a turn up) Good Luck. I'll check back to see how the progress going.

Jul 05, 2009 | 2001 Dodge Neon

1 Answer

Won't accelerate past 40 miles per hour


these jeeps did have a small problem with the tp sensor. i would also have the back pressure of the exhaust checked to see if you have a catalytic converter choked up.

Nov 24, 2008 | 1998 Jeep Cherokee

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Won't go past 40 miles per hour


no not muffler problem could be bad gas or TPS sensor how many miles you have on it?

Nov 24, 2008 | 1999 Jeep Wrangler

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