1996 niiata issues i am stumped.
03-09-2007, 02:52 PM
#1
1996 Miata issues i am stumped.
Ok so my dad's stock 1996 miata is having some issues. currently It will not start or idle.
It will turn over and fire.
It has good compression on all cylinders
The timming belt looks OK
The fuel pump has been changed for a known good one.
New fuel filter
Coils speck out on ohm's
Plugs are new
Plug wires speck out on ohms
Car has 98K miles on it.
Bad stuff that happened just before.
Heater hose failure folowed by an attempt to get the car home. Car made it about 1 mile before the temp gauge said uh ohh and the car was promptly pulled over into a gas station where repairs where effected. Upon refilling the Rad and replacing the failed line. The car ran fine, all the way home 13 miles or so. During the repair process the CAS was removed and replaced for better clearance to the heater lines. Fast forward about 1 week car has been sitting, and the car now doesn't reach any more than 6K rpm and makes little top end power, timming is checked and set but the issue still isnt fully resolved.
Driving continues until the rpm ceiling lowers itself agian to 4k rpm with little power increase past 2.5k rpm. After parking and trying to restart the car now has a no power and limps home. Once home the fuel pump is replaced plug wires are checked plugs are replaced, and all general electrical connections or checked to the best of my knowledge. But the engine will not start. Now this morning the FP is replace with a known good walboro FP and it still wont start. The valvel cover is removed to confirm TB is in one peice and look for any missing teeth etc (everything turn fine). So i have no friggin idea where to go next i have spark i have fuel and i have real good compression but no amount of twisting the cas etc will get the car running agian. Anybody wanna lemme know what could be wrong? Or if there is something i missed?
Thanks in advance for any input guys i will consider and try any and all inputs i am desperate and running out of ideas.
I got it fixed Go to the last post to see how.
Last edited by magnamx-5; 04-21-2007 at 05:09 PM. Reason: Updated
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03-09-2007, 04:25 PM
#5
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If it were older, I'd say crank failure, cuz your story sounds exactly like what happens with a short nose crank takes a dump.
Let it turn over a bunch then pull a plug out and inspect it. If it's wet, you're getting gas. Rest the plug somewhere and put a screwdriver next to the electrode. Have someone else crank the car over while you watch for spark.
Have you checked the main fuses?
Let it turn over a bunch then pull a plug out and inspect it. If it's wet, you're getting gas. Rest the plug somewhere and put a screwdriver next to the electrode. Have someone else crank the car over while you watch for spark.
Have you checked the main fuses?
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03-09-2007, 05:20 PM
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During the repair process the CAS was removed and replaced for better clearance to the heater lines. Fast forward about 1 week car has been sitting, and the car now doesn't reach any more than 6K rpm and makes little top end power, timming is checked and set but the issue still isnt fully resolved.
check timing again.
check timing belt for tooth slippage.
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