RX7 FD wont rev past 3k RPM!!

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08-27-18, 01:51 PM

#76

Trinityevo13

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Quote:

Originally Posted by mikejokich

Try Ari at Rotary Performance , now Reliable Performance, RX7.COM Performance and Repair Parts for RX-7 and RX-8.
Mike

Thanks Mike. Will check it out

Cheers

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08-27-18, 05:19 PM

#77

cymfc3s

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If you get desperate, I have a brand new in-the-box set of Mazda OEM injectors I squirreled away for a rainy day.

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08-28-18, 11:38 AM

#78

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Quote:

Originally Posted by cymfc3s

If you get desperate, I have a brand new in-the-box set of Mazda OEM injectors I squirreled away for a rainy day.

Thanks cymfc3s. I will drop you a DM if needed

Cheers

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08-29-18, 09:28 PM

#79

yourmom23

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If you remove the omp on stock ecu it will go into limp mode

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08-30-18, 07:32 AM

#80

Trinityevo13

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Quote:

Originally Posted by yourmom23

If you remove the omp on stock ecu it will go into limp mode

OMP connected and functioning.

Cheers

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09-20-18, 02:18 PM

#81

Trinityevo13

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Hey guys,

Got the stock injectors finally. All the way from Japan and was a pain with USPS, but glad I finally got them. Will try to install them next week and then fire it up and see how it goes.

Cheers

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10-03-18, 08:10 PM

#82

Boozer007

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This is like a great Hitchcock movie. The suspense is killing me. �� Subscribed.

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10-04-18, 07:12 AM

#83

Trinityevo13

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Quote:

Originally Posted by Boozer007

This is like a great Hitchcock movie. The suspense is killing me. �� Subscribed.

HAHAHA!! Thanks for subscribing Boozer007.

I plan to get the injectors installed this weekend, time has been scarce these past couple of weeks. Hopefully I will be back on the forum with good news.

Cheers

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10-07-18, 03:49 PM

#84

Trinityevo13

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Hey gents,

Update: Changed the injectors to brand new stock 550/850cc injectors. The car started and idled but still rough. I noticed that smoke was coming out the exhaust after I shut the car off. (See pic in next post.)

Does this sound like too much fuel? Even after the correct injectors are now in?

The next step would be to install the Power FC and go from there.

Are there any suggestions?

Thanks for the help guys. Appreciated as always.

Cheers

Last edited by Trinityevo13; 10-07-18 at 03:56 PM.

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10-07-18, 03:55 PM

#85

Trinityevo13

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10-07-18, 03:58 PM

#86

Trinityevo13

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Also noticed this. DP to mid pipe connection. It was soaked. Not sure if it was from the previous flooding issue with the large injectors. But that can't be good 🤦

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10-07-18, 04:38 PM

#87

DaveW

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Quote:

Originally Posted by Trinityevo13

Also noticed this. DP to mid pipe connection. It was soaked. Not sure if it was from the previous flooding issue with the large injectors. But that can't be good 🤦

Looks like oil, not gas. Gas would not stay that wet looking.

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10-07-18, 04:42 PM

#88

Trinityevo13

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Quote:

Originally Posted by DaveW

Looks like oil, not gas. Gas would not stay that wet looking.

True, good point DaveW. Now if this is oil, how is oil getting into the exhaust 😳🤦

OMP?

Cheers

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10-08-18, 03:07 PM

#89

DaleClark

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First off, that has to be the RUSTIEST main cat I've ever seen.

Running rough - was it running rough for a bit and you shut it down, or it ran rough for a long time and the engine warmed up? Could just be a fouled plug from short starts/troubleshooting.

Dale

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10-08-18, 03:16 PM

#90

Trinityevo13

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Quote:

Originally Posted by DaleClark

Thanks Dale. The rust is from the stock heat shield and its mainly on the down pipe. Definitely plan to change in the near future lol. I actually had a DP but it couldn't work because it was getting caught up in the steering shaft, so had to resort to what was available. I assure you the insides are all good!!

It ran rough for a short time and I shut it off. It did not warm up at all, I doubt it would have anyway. I will check the plugs for sure, just ran out of time this past weekend. Maybe I will try clearing it out as well - fuel pump disconnect and pedal to the floor and cranking it over.

Thanks for your input Dale.

Cheers

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10-09-18, 11:29 AM

#91

tjdj009

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not trying to jump to conclusions but i had a very similar problem.... i would try a compression check. Unfortunately for me the back rotor has none

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10-09-18, 11:51 AM

#92

Trinityevo13

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Quote:

Originally Posted by tjdj009

not trying to jump to conclusions but i had a very similar problem.... i would try a compression check. Unfortunately for me the back rotor has none

Thanks tjdj009, at this point it cant hurt to do a compression check. I will do one when I get the chance. Need to borrow the compression tester equipment.

Cheers

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10-09-18, 11:29 PM

#93

tjdj009

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Quote:

Originally Posted by Trinityevo13

Thanks tjdj009, at this point it cant hurt to do a compression check. I will do one when I get the chance. Need to borrow the compression tester equipment.

Cheers

not sure where your from but autozone in some places will let you “rent” one for free

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10-19-18, 10:22 PM

#94

RobertoMartinez

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Any updates? Hope we get this sorted out for you soon. Got any pictures of the front coil triggers?

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10-30-18, 11:25 AM

#95

tjdj009

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bumping some one else's thread cause i had the same problem and now i have no motor sooo tryina figure it out soon

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11-01-18, 09:36 PM

#96

the one

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JUst had the same problem, with my 7. Not wanting to rev past 3500. Horrible break up , spurting. Looking at every system, ignition coils, fuel injectors, wringing. Check your crank sensors to crank wheel clearance. Mine where off spec. And when I changed them and got them to spec , it solved my problem. Full free reving , no more break up. Weight off my chest!! Thank you BANZAI!!

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11-17-18, 04:48 PM

#97

Trinityevo13

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Quote:

Originally Posted by Trinityevo13

Thanks tjdj009, at this point it cant hurt to do a compression check. I will do one when I get the chance. Need to borrow the compression tester equipment.

Cheers

Ok some update. I did a compression check. All seems fine. Rear rotor: 97 psi and front rotor: 110psi.

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11-17-18, 04:49 PM

#98

Trinityevo13

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Quote:

Originally Posted by the one

Thanks, I will check the clearance on it. Know the clearance acceptable? Sry for the late reply didn't get any updates through email that the post was updated

Cheers

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11-17-18, 05:09 PM

#99

Trinityevo13

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Sorry for the bad angle and quality. But that's how the crank sensor looks. I will have to get a fielder gauge on it to measure the clearance.

Cheers

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11-17-18, 10:07 PM

#100

Trinityevo13

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Hey guys,

Does anyone know where I can get connector plugs to the ECU? I pulled the connectors from the ECU so many times they aren't holding up too well. I plan to rewire some or all of the harness.

Cheers

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