Question about 1988 Mazda RX-7

3 Answers

88 mazda rx7, car doesn't like to fire over. lot of fuel vapor coming out of tail pipes. spark plug fuel fouled.

Posted by on

  • ferretfred Sep 30, 2009

    rotory engines don't have timing belts or chains.


3 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Hey! I have a 1988 too and I've had that same problem and it all came back to one thing. The oxygen sensor on the exhaust manifold. It either needs to be changed or the connection is loose right behind the intake manifold. (Dynamic chamber) Hope this works for ya. It did for me.

Posted on Feb 10, 2010

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Take the engine fuse out while putting your foot to the floor and cranking. You may need to spray a bit of engine starter in before doing this. The reason is that the engine fuse will continue to tell the fuel system to pump in more fuel. By removing the fuse, the fuel system will temporarily stop pumping, but will allow the engine to dry out. As soon as the rotary starts kicking like it will start, push the fuse back in and DO not take your foot off the gas until it completely cleans itself out. Usually takes 2 people to do this, but is a common problem for rotaries.

Posted on Apr 28, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Mazda Master
  • 1,564 Answers

Very possibly you need a new timing belt installed. Thank you, Dana

Posted on Sep 30, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

What cause the engine to run rich and black smoke coming from tail pipe?

hmmm sounds like the fuel pump is more of the issue as its sending too much fuel into the motor making it run rich or the gas that your using is too rich for the motor itself

Apr 22, 2017 | Cars & Trucks

1 Answer

Why are my spark plugs wet and I smell gas in my 2000 maxima

without asking for more details -- the spark plugs could be bad, the ignition firing is off, the ignition wiring is faulty, the fuel injectors are fouled and no vaporizing the fuel for the plugs to ignite.

Jan 25, 2015 | Cars & Trucks

1 Answer

I have an 88 mazda rx7, the factory alarm system has disabled the fuel system, how do i reset it and permanently disable alarm system for good?

the factory alarm doesn't stop the fuel system it only cuts the starter your problem lies somewhere else

Oct 14, 2011 | 1988 Mazda RX-7

1 Answer

I have a 4 cyclinder fuel injected vortec engine in my accord ,my car is dumping to much fuel which fouls out my plugs n black fumes is coming from the tail pipe.there is plenty pressure coming from the...

You need to check that the spark plugs are in good condition and check the spark (spark should be blue = good, yellow = weak spark ) Is there an engine light on? if the plugs are black this is a rich condition (to much fuel, or fuel not burning) the spark plug wires could be bad, weak ignitor,

Aug 23, 2011 | 1997 Honda Accord

1 Answer

2000 S10 with 4.3 V6 has P0305 trouble code, replaced Cap, rotor, plugs, wires, still missing and running sluggish and hesitating. could Cat. Converter be bad? occassional rotten egg smell and lots of...

P0305 is the generic DTC (Data Trouble Code) for cylinder #5 mis-fire detected, and you have already eliminated the ignition tune-up parts as the problem, the next procedure should be a compression check, at least on the #5 cylinder to rule out the possibility of a mechanical mis-fire. If the compression is good then check the pick-up coil located inside of the distributor for any damage, and there is a possibility that a fuel injector is faulty or has a broken fuel line, and if the upper intake manifold is removed, and the large wire connector and fuel lines replaced back on the fuel injector assembly, then cycling the ignition key off and on several times will show if there is a fuel leak on any of the fuel injector lines, and removing the fuel injector nozzles from the lower intake manifold and then cranking the engine over (have the ignition coil connected but be certain to have the ignition coil high tension wire to the distributor cap grounded) will show if any fuel injectors are not firing or have a plugged up nozzle. The original fuel injector assembly in that vehicle has the actual fuel injector inside of the injector assembly block and the fuel travels through a small plastic tube out to a fuel nozzle attached out on the lower intake manifold for each cylinder, and a replacement fuel injection assembly is made a lot better and will have the fuel injector mounted out from the injector assembly block on the end of a larger heavier plastic tube with covered wires running back along the fuel tube to the injector block. Do you remember what the #5 spark plug looked like when you removed and replaced it and did any of the spark plugs have a black sooty carbon fouling? The #5 cylinder is located at the rear spark plug on the driver side and here is a firing order diagram to assist you. The catalytic converter would not be the suspect and moisture or clear liquid dripping from the tail-pipe is an indication that the catalytic converter is functioning properly, unless coolant or liquid is running out of the tail-pipe, then there might be a faulty intake manifold or cylinder head gasket, and a rotten egg smell is usually caused by poor fuel if the smell is coming from the exhaust, or an over-charging battery condition, (voltage at the battery should be between 14 an 16 volts when the engine is running) and let me know if you require the procedure to remove the upper intake plenum, or if you require any further assistance.



Oct 23, 2010 | 2000 Chevrolet S-10

1 Answer

Engine surges, black smoke from tailpipe, and excessive fuel consumption

Hi,black smoke from tail pipe is unburned fuel ( excessive fuel consumption ) so your not firing on all cylinders!!! ( that's where the surging is coming from ) if i recall the 88 model has a carburetor.( not tbi,or injected) but either way its going to be in the spark! start with the easiest/cheapest and work your way up... will be like a #1.bad spark plug wire, or #2.bad plug, #3.bad distributor cap,#4.bad distributor rotor,#5 bad electronic distributor module. will be one or more of those items that's bad.......good luck..yz-maniac

Oct 12, 2010 | 1988 Dodge Ram 50

2 Answers

89 Mazda RX7 water on spark plugs and oil and then overheats

Water on plugs?? There are not many places for it to come from.. Sure its not fuel? Need any rotory advice please ask. I have specialized in RX7's for over 13 years now..

Apr 09, 2009 | 1987 Mazda RX-7

5 Answers


Yes it does, that is the only engine option.

Mar 03, 2009 | 1987 Mazda RX-7

1 Answer

90 rx7 turns over but will not start

it could be many things, no fire or no fuel, replaceing your spark plugs is most likely the leats expensive thing to do and if that doesnt work then there is most likley a problem with the fuel either too much or not enough. rx7s are notorious for flooding and it doesnt take much.

Feb 18, 2009 | 1990 Mazda RX-7

Not finding what you are looking for?
1988 Mazda RX-7 Logo

332 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mazda Experts


Level 3 Expert

75797 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8140 Answers

Are you a Mazda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides