Author Topic: 22re issue (Read 5417 times)

94Yota22re · « **on:** Feb 28, 2018, 04:08:16 PM »

Hello, the 22re in my truck is having some very odd running issues that after like 8 months of trial and error I still can't figure out. It dosen't rev past 4500 rpm when I go WOT with the truck sitting still. If I gingerly rev it, it will go to 5000 rpm. The VAFM goes crazy when alot of throttle is applied (over 1/4). At full throttle the truck boggs and backfires really bad like its running way lean. Any help is appreciated, thanks.

gnob · « **Reply #1 on:** Feb 28, 2018, 04:21:45 PM »

Fuel filter or afm is jank

94Yota22re · « **Reply #2 on:** Feb 28, 2018, 04:51:47 PM »

Fuel filter is new, replaced the afm with two other units and still same problem.

Gnarly4X · « **Reply #3 on:** Feb 28, 2018, 05:15:44 PM »

Quote from: 94Yota22re on Feb 28, 2018, 04:08:16 PM

Hello, the 22re in my truck is having some very odd running issues that after like 8 months of trial and error I still can't figure out. It dosen't rev past 4500 rpm when I go WOT with the truck sitting still. If I gingerly rev it, it will go to 5000 rpm. The VAFM goes crazy when alot of throttle is applied (over 1/4). At full throttle the truck boggs and backfires really bad like its running way lean. Any help is appreciated, thanks.

Hi 94Yota22re,

Before we start pulling rabbits out of butts, would you mind describing what exactly has been done in 8 months to try to figure out the problem?

Thank you.

Gnarls.

emsvitil · « **Reply #4 on:** Feb 28, 2018, 05:21:10 PM »

Bad gas (water ? )

94Yota22re · « **Reply #5 on:** Feb 28, 2018, 05:26:50 PM »

I have replaced the AFM, ecm, tps, fuel filter and injectors. The fuel filter and injectors were replaced when the topend was done an it ran great for about 3000 miles then all this started.

94Yota22re · « **Reply #6 on:** Feb 28, 2018, 05:28:59 PM »

Quote from: emsvitil on Feb 28, 2018, 05:21:10 PM

Bad gas (water ? )

It's had several gallons of fuel ran through it since this started so there's no way

OVRAROK · « **Reply #7 on:** Feb 28, 2018, 05:34:59 PM »

http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml

94Yota22re · « **Reply #8 on:** Feb 28, 2018, 05:53:11 PM »

I have adjusted the tps but, even if it was out of adjustment it wouldn't cause the problem i'm having right?

OVRAROK · « **Reply #9 on:** Feb 28, 2018, 06:00:40 PM »

Quote from: 94Yota22re on Feb 28, 2018, 04:51:47 PM

Fuel filter is new, replaced the afm with two other units and still same problem.

Was 1 of AFM off a running truck.

gnob · « **Reply #10 on:** Feb 28, 2018, 08:02:45 PM »

Clogged cat

Snowtoy · « **Reply #11 on:** Feb 28, 2018, 11:30:54 PM »

Checked the timing?

emsvitil · « **Reply #12 on:** Mar 01, 2018, 01:42:26 AM »

Full Moon

94Yota22re · « **Reply #13 on:** Mar 01, 2018, 07:10:36 AM »

I just tested the afm and it is perfect. Timing is right on.

OVRAROK · « **Reply #14 on:** Mar 01, 2018, 08:29:23 AM »

have you checked for crack or leak in plastic intake tube that runs from TB to AFM.

94Yota22re · « **Reply #15 on:** Mar 01, 2018, 09:36:17 AM »

Quote from: OVRAROK on Mar 01, 2018, 08:29:23 AM

have you checked for crack or leak in plastic intake tube that runs from TB to AFM.

Yes it had a crack in each of the rubber ends but I taped them up and no difference.

OVRAROK · « **Reply #16 on:** Mar 01, 2018, 09:51:30 AM »

do you have a way of testing fuel pressure?

94Yota22re · « **Reply #17 on:** Mar 01, 2018, 10:18:45 AM »

No I don't, at least not at the rail I've heard something about drilling and tapping the back of the fuel rail for a 3/8 npt fitting. Is that the only way?

OVRAROK · « **Reply #18 on:** Mar 01, 2018, 10:55:38 AM »

Quote from: 94Yota22re on Mar 01, 2018, 10:18:45 AM

No I don't, at least not at the rail I've heard something about drilling and tapping the back of the fuel rail for a 3/8 npt fitting. Is that the only way?

you can drill and tap an extra banjo bolt thats at the cold start injector, 1/8 npt. Then thread 1/8 npt to barbed end in. hose to barbed end, to a pressure gauge. i know lc engineering sells a kit if you would rather just purchase. lc engineerings kit is permanent solution

94Yota22re · « **Reply #19 on:** Mar 01, 2018, 11:03:41 AM »

Thanks, I'll probably just buy the lce kit. I'll report my findings after.

Snowtoy · « **Reply #20 on:** Mar 01, 2018, 02:26:31 PM »

Quote from: 94Yota22re on Mar 01, 2018, 09:36:17 AM

Yes it had a crack in each of the rubber ends but I taped them up and no difference.

The accordion section is also prone to crack with age.

94Yota22re · « **Reply #21 on:** Mar 01, 2018, 03:33:42 PM »

I found the problem! There are several lobes wiped off the cam I would post pics but I don't think I have enough posts.

OVRAROK · « **Reply #22 on:** Mar 01, 2018, 03:43:14 PM »

Quote from: 94Yota22re on Mar 01, 2018, 03:33:42 PM

I found the problem! There are several lobes wiped off the cam I would post pics but I don't think I have enough posts.

Good to hear

94Yota22re · « **Reply #23 on:** Mar 01, 2018, 05:28:42 PM »

Certainly, I think what caused it was a mix of too high spring pressure from the cheap chinese head I used and an improper break-in procedure.

94Yota22re · « **Reply #24 on:** Mar 01, 2018, 05:47:57 PM »

Now I can post the pics. Pretty bad eh?

Gnarly4X · « **Reply #25 on:** Mar 01, 2018, 06:14:10 PM »

Quote from: 94Yota22re on Mar 01, 2018, 05:47:57 PM

Certainly, I think what caused it was a mix of too high spring pressure from the cheap chinese head I used and an improper break-in procedure.

During the 8 months that you experienced and attempted to diagnose the problem, did you ever remove the rocker cover and inspect the camshaft and adjust the valve lash?

Whose head and camshaft did you install and what camshaft break-in procedure did you use?

Did you install a new rocker rack or use a used one?

How many miles on the engine before the new head and cam was installed?

Why do you suspect "too high spring pressure"?

Gnarls.

94Yota22re · « **Reply #26 on:** Mar 01, 2018, 06:47:38 PM »

I did take the rocker cover off and check the valve lash. It seemed to be fine. The engine never had any exessive ticking so I suppose the flat part of the lobe remained okay. I have absolutely no idea how on earth I could have missed the lobes being worn so bad

the head and cam were super cheapies that I bought from Amazon. I never did any research on the quality of the parts. The rockers were original and I didn't do a proper break-in. The engine had 183,000 mi on it iirc. I read a thread on pirate that was about the chinese heads and that the valve springs were very think. I will find a factory head and confirm this later.

emsvitil · « **Reply #27 on:** Mar 01, 2018, 07:51:13 PM »

Did you put the rocker arm assembly together correctly?

I've seen wiped lobes when the shafts didn't have the oiling holes in the correct orientation.

Gnarly4X · « **Reply #28 on:** Mar 02, 2018, 02:09:19 AM »

Quote from: 94Yota22re on Mar 01, 2018, 06:47:38 PM

I did take the rocker cover off and check the valve lash. It seemed to be fine. The engine never had any exessive ticking so I suppose the flat part of the lobe remained okay. I have absolutely no idea how on earth I could have missed the lobes being worn so bad the head and cam were super cheapies that I bought from Amazon. I never did any research on the quality of the parts. The rockers were original and I didn't do a proper break-in. The engine had 183,000 mi on it iirc. I read a thread on pirate that was about the chinese heads and that the valve springs were very think. I will find a factory head and confirm this later.

"The only source of knowledge is experience."

~ Albert Einstein

Gnarls.

94Yota22re · « **Reply #29 on:** Mar 02, 2018, 02:19:26 AM »

Quote from: emsvitil on Mar 01, 2018, 07:51:13 PM

Did you put the rocker arm assembly together correctly?

I've seen wiped lobes when the shafts didn't have the oiling holes in the correct orientation.

I never took it apart. It came off in one piece, it went together in one piece. I wasn't smart enough to pull it apart and clean the oiling holes..

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