Maf Upgrade

Glocker23 · May 7, 2016

Not sure where to post this and if this is in the wrong spot I apologize.

I have a 92 LX 5.0. The car was modded by prior owner so still finding things. I noticed it has a bbk 65mm throttle body. Bbk air intake in the fender. And what looks like a stock maf. The throttle is wicked rough at times due to a f303 cam but i was wondering if this stock maf would be part of the issue? The sensor reads f1zf-12b579-aa. The housing looks old and does not look like any design on American muscle website so I am assuming it's the stocker.

So if it is a possible cause, what kind or pieces would you upgrade it to? Also looking on the site I noticed some maf comes with injectors. I have no idea what kind of injectors are in there now.

Thanks in advance for any help with this

Sent from my Nexus 6P using Tapatalk

mikestang63 · May 7, 2016

Your MAF is a stock 58mm unit. Your rough idle could be from a few thing, but I doutbt it is because of the F cam. The F cam is way too much LSA 114 for an otherwise stock motor. They are mean for cars with heads, a supercharger, etc and make power in the upper portion of the rpm range Howver the wider LSA should not produce a lumpy bad idle like a B or E cam

That being said.........

what color are your injectors... your MAF is for 19# orangeyellow top injectors
Do you have a chip on the EEC
is your MAF screen intact. is the screen or sensor wire dirty
possible vacuum leaks
have you run the codes- could be a bad ECT, IAT. TPS
What is your timing set at

Glocker23 · May 7, 2016

Can I run codes if no cel is lit? Last owner said they never chipped it. Not sure of rest. Def have no idea if timing or ability to check.

Sent from my Nexus 6P using Tapatalk

Glocker23 · May 7, 2016

It runs so rough sometimes at idle the motor is visibility bouncing and surging especially at idle. Past owner also pulled all emissions equipment. But runs good after solid warm up. Except motor has visible bounce still

Sent from my Nexus 6P using Tapatalk

mikestang63 · May 7, 2016

Glocker23 said:
Can I run codes if no cel is lit? Last owner said they never chipped it. Not sure of rest. Def have no idea if timing or ability to check.

Sent from my Nexus 6P using Tapatalk

yes- often codes are present without the CEL tripped. Search the archive sticky for how to run the codes and report back what codes if any are present. You will want to run the key on engine off, key on engine running, and the cylinder balance tests.
@jrichker please for how to run the codes

Glocker23 · May 7, 2016

I have a code reader I bought through Amazon. Recommended by this or another site. Will give it a try. By running it I can't accidentally trip that limp mode I have been reading about cam i?

Sent from my Nexus 6P using Tapatalk

Glocker23 · May 7, 2016

Stock injectors then. They look almsot Rusty lol.

Sent from my Nexus 6P using Tapatalk

jrichker · May 7, 2016

Glocker23 said:
I have a code reader I bought through Amazon. Recommended by this or another site. Will give it a try. By running it I can't accidentally trip that limp mode I have been reading about cam i?

Sent from my Nexus 6P using Tapatalk

The only 2 things you can do with a code reader is to read the codes and clear them.

Clearing the codes does not fix what set them, it just erases the codes stored in memory.

Dump codes sticky

Look at the top of the 5.0 Tech forum where the sticky threads are posted. One of them is how to dump the computer codes. Codes may be present even if the CEL(Check Engine Light) isn’t on. I highly suggest that you read it and follow the instructions to dump the codes. http://www.stangnet.com/mustang-forums/threads/how-to-pull-codes-from-eec4.889006/

Glocker23 · May 7, 2016

Will take a read tonight at work. I recently bought this INNOVA Ford Digital Code Reader off Amazon cuz the other way I couldn't figure out

Sent from my Nexus 6P using Tapatalk

OneWheelPeel · May 7, 2016

clean your maf. That's what I would try first.

OneWheelPeel · May 7, 2016

And check your eec for a chip. Its inside the passenger kick panel. The other day I randomly decided to look at the eec and I found a chip attached.

Maf Upgrade

Glocker23

Member

mikestang63

Glocker23

Member

Glocker23

Member

mikestang63

Glocker23

Member

Glocker23

Member

jrichker

StangNet's favorite TOOL

Glocker23

Member

OneWheelPeel

Active Member

OneWheelPeel

Active Member

Similar threads

Maf Upgrade

Member

Member

Member

Member

Member

StangNet's favorite TOOL

Member

Active Member

Active Member

Similar threads

Privacy & Transparency

Privacy & Transparency