Puzzling/ Happy Motor?

Topic: Puzzling/ Happy Motor? (Read 11725 times) previous topic - next topic

Puzzling/ Happy Motor?

Reply #30 – March 29, 2016, 10:54:35 PM

I disabled EGR in my tune. Way easier than actually putting tools to the car...

Puzzling/ Happy Motor?

Reply #31 – March 30, 2016, 12:20:47 PM

Quote from: thunderjet302;454547

I should not that blocking the EGR gases and not removing the vacuum from the EGR system allows the system to operate. This means that the computer assumes that EGR gasses are flowing into the intake even though the passage is blocked. This can cause pinging as the computer actually adds more timing with EGR gasses flowing. Without the exhaust gas present to cool the combustion chamber knock will occur with the advanced timing.

Right, this is basically why I did what I did. Took 3 seconds, cost me nothing and avoided that dangerous condition.
I didn't even know the ECU could disable EGR function (which was why I left EVP connected).
Come to think of it, I do have an occasional hesitation that lasts between maybe 1/2 pedal and until I get almost to the floor. I'm wondering if it's not adding timing because the EVP is claiming we're already at WOT.

I'll probably cut out the pins or maaaaaybe find a place to hide the plug. I do prefer the look of every factory piece being in place, especially for the sleeper effect I've constructed for this car. :D

EVP stuck must be the result of an open circuit. I wonder why some people report a CEL...possibly certain year ECU's flag that one.

Puzzling/ Happy Motor?

Reply #32 – March 30, 2016, 12:29:26 PM

http://www.allfordmustangs.com/forums/5-0l-tech/142371-egr-delete-right-way.html

Got off my lazy ass and did some searching. Took only a minute ironically. Looking at Joel's post it sounds like what I've done is perfectly acceptable.
"not having the EGR system operational (= any EGR failure logged).... will cause an automatic EGRsystem deletion by the ECM logic" -Joel5.0

I'm seriously not trying to be a stick in the mud here...as I mentioned I don't want things dangling around, so if I can leave it all looking the same but accomplish the same task, that's how I do it. Especially since the only thing I had to "buy" was a piece of tape LOL

Puzzling/ Happy Motor?

Reply #33 – March 30, 2016, 01:52:07 PM

I removed all the EGR stuff and taped the connectors into the harness just in case I ever want to put it back. In you situation I would leave everything hooked up and simply remove the vacuum line between the EGR valve and the EGR solenoid and cap the exposed ends. This will keep everything looking "stock" and prevent the EGR valve from opening.

Puzzling/ Happy Motor?

Reply #34 – March 30, 2016, 02:14:35 PM

This is funny, i went to my local parts store to pick up a TCS gasket set and was telling the guy i was going to install a gear drive in my 5.0 and another customer started saying ohhhh it will mess up your motor and camshaft, i laughed at him and said did you check all clearances when you installed it? he said what clearances i laughed at him he got pissed off ...lol

Puzzling/ Happy Motor?

Reply #35 – March 30, 2016, 07:31:56 PM

Quote from: 88Merc50;454490

order #15426378

Ok, maybe I'm missing something here.... You posted that your distributor is wired for a non HO firing order but you confirm a spider and roller lifter dog bones. I'd be pulling that cam in a hurry to see what you have in there.

I can't imagine the car would run very well with a non HO ecu, non HO firing order and a roller cam. The only thing I could surmise is that someone threw a roller cam in there that's ground for the standard firing order

Non HO 15426378
HO/351w 13726548

Puzzling/ Happy Motor?

Reply #36 – March 30, 2016, 08:28:54 PM

Quote from: jandmmustangs;454566

Ok, maybe I'm missing something here.... You posted that your distributor is wired for a non HO firing order but you confirm a spider and roller lifter dog bones. I'd be pulling that cam in a hurry to see what you have in there.

I can't imagine the car would run very well with a non HO ecu, non HO firing order and a roller cam. The only thing I could surmise is that someone threw a roller cam in there that's ground for the standard firing order

Non HO 15426378
HO/351w 13726548

Uh you do realize that all 86-88 5.0 Thunderbird/Cougars had a roller cam with a 1-5-4-2-6-3-7-8 firing order right?

Puzzling/ Happy Motor?

Reply #37 – March 30, 2016, 09:10:48 PM

That's what I was thinking. I still want him to measure Vref with everything plugged in.

Puzzling/ Happy Motor?

Reply #38 – March 30, 2016, 10:15:44 PM

Quote from: thunderjet302;454567

Uh you do realize that all 86-88 5.0 Thunderbird/Cougars had a roller cam with a 1-5-4-2-6-3-7-8 firing order right?

AND that includes the '86-'91 Crown Vic, Grand Marquis and Town Car to '90('91 got the fat girl 4.6)...

Every passenger car 5.0 with SEFI injection uses a roller cam, no exceptions... That also includes E/F series with mass air...

Puzzling/ Happy Motor?

Reply #39 – March 31, 2016, 01:00:25 PM

Quote from: TurboCoupe50;454572

AND that includes the '86-'91 Crown Vic, Grand Marquis and Town Car to '90('91 got the fat girl 4.6)...

Every passenger car 5.0 with SEFI injection uses a roller cam, no exceptions... That also includes E/F series with mass air...

Yep those too.

94-97 351W are roller cam as well.

Puzzling/ Happy Motor?

Reply #40 – March 31, 2016, 01:58:34 PM

Hi i driven about 100 miles now seems to run awesome, no surging, idles good, no pinging. never had above 4,000 rpm though. plugs are light tan, only way i can reinstall 02 sensors would be to buy new down pipes, mine dont have the bung holes.

Puzzling/ Happy Motor?

Reply #41 – March 31, 2016, 03:19:49 PM

Get some oxygen sensor bungs welded in: http://www.summitracing.com/search/part-type/weld-in-bungs-and-fittings/bung-type/oxygen-sensor?N=4294948829%2B4294948828&SortBy=Default&SortOrder=Default

Install the oxygen sensors. It is NOT optional for the EEC-IV system. They need to be installed.

Puzzling/ Happy Motor?

Reply #42 – March 31, 2016, 03:31:54 PM

Woo hoo, just found a X pipe for shorty headers for 50.00 on craigslist, has bung holes, gonna go get it, never used...i love CL ...lol

Puzzling/ Happy Motor?

Reply #43 – March 31, 2016, 04:30:46 PM

You'll need longer HEGOs or extensions. Since your old ones are suspect, I'd just replace them with longer ones for a Mustang or Mark VII.

Puzzling/ Happy Motor?

Reply #44 – May 07, 2016, 02:02:06 AM

Quote

http://www.allfordmustangs.com/forum...right-way.html

Got off my lazy ass and did some searching. Took only a minute ironically. Looking at Joel's post it sounds like what I've done is perfectly acceptable.
"not having the EGR system operational (= any EGR failure logged).... will cause an automatic EGRsystem deletion by the ECM logic" -Joel5.0

I'm seriously not trying to be a stick in the mud here...as I mentioned I don't want things dangling around, so if I can leave it all looking the same but accomplish the same task, that's how I do it. Especially since the only thing I had to "buy" was a piece of tape LOL

By using that plug you get a code 33 and ONLY a code 33. Without the plug you get 2 or 3 more EGR system codes. The code 33 will not set a check engine light on cars that actually have working ones. One of the other codes WILL. With our cars it's moot, but in the factory equipped Mass Air cars it can be an issue. Even if you did a MAF conversion with a later ECU it won't show up in a CougarBird as far as I know.